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Every September across Canada — from a Grade 9 classroom in Mississauga to a Grade 12 Advanced Functions course in Calgary — thousands of students face the same question: Casio vs Texas Instruments scientific calculator for high school? It sounds simple until you’re standing in the school supplies aisle comparing boxes, or scrolling Amazon.ca at 11 p.m. the night before school starts. Both brands have earned fierce loyalty over decades, and both make genuinely excellent calculators. The real question is which one is right for you, right now, in Canadian dollars, and for your provincial exam policy.

What most Canadian buyers overlook is that this isn’t just a brand preference debate — it’s a practical decision shaped by very different design philosophies. Casio tends to pack more mathematical functions into a budget-friendly device and is famous for its solar-and-battery hybrid power, meaning your calculator won’t die mid-exam when the fluorescent lights in the gym are barely adequate. Texas Instruments, on the other hand, prioritises intuitive navigation, a cleaner interface, and broad exam approval across North American standardised tests.
For Ontario students, the EQAO Grade 9 Assessment of Mathematics now uses an online platform with a built-in calculator tool for most sections — but your own scientific calculator still matters for classroom work and senior-year provincial and AP exams. Alberta students writing Diploma Exams face strict provincial calculator rules that explicitly govern which models are permitted. Knowing these policies before you buy saves you from an expensive mistake.
This guide breaks down seven models currently available on Amazon.ca — all verified, all priced in CAD — across both brands, so you can make a confident, informed decision. Let’s get into it.
Quick Comparison: Casio vs TI at a Glance
| Model | Brand | Display | Functions | Power | Best For | Price Range (CAD) |
|---|---|---|---|---|---|---|
| fx-991EX ClassWiz | Casio | High-res LCD | 552 | Solar + Battery | Senior high / STEM | $30–$45 |
| fx-991CW | Casio | Natural 4-tone | 540 | Solar + Battery | Grade 10–12 | $35–$55 |
| fx-991ES Plus 2nd Ed. | Casio | Natural V.P.A.M. | 417 | Solar + Battery | Budget/mid-high | $25–$38 |
| TI-30X Pro MathPrint | Texas Instruments | High-res LCD | Advanced | Battery only | Senior high / Exam | $40–$60 |
| TI-30XS MultiView | Texas Instruments | 4-line LCD | Standard | Solar + Battery | Grade 9–10 | $20–$32 |
| TI-36X Pro | Texas Instruments | 4-line MultiView | Advanced | Solar + Battery | Senior STEM | $30–$48 |
| TI-30XIIS | Texas Instruments | 2-line LCD | Standard | Solar + Battery | Budget/Grade 9 | $15–$25 |
Looking at this table, the mid-range options — the Casio fx-991EX ClassWiz and the TI-36X Pro — offer the most balanced value for Canadian students who need to carry one calculator from Grade 9 all the way through Grade 12. Budget buyers will find genuine utility in the TI-30XIIS and Casio fx-991ES Plus 2nd Edition without overpaying. The premium picks (fx-991CW and TI-30X Pro MathPrint) are worth the extra CAD if you’re heading into university-level math or science courses and need every function available.
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Top 7 Scientific Calculators for Canadian High School Students: Expert Analysis
1. Casio fx-991EX ClassWiz — The Canadian Classroom Favourite
The Casio fx-991EX ClassWiz is, without question, one of the most popular scientific calculators at Canadian high schools right now — and for very good reason. Its high-resolution LCD display renders equations, fractions, and roots exactly as they appear in your textbook, which is a bigger deal than it sounds. When you’re staring down a trig identity during a Grade 11 Functions exam, reading a blurry 2-line display versus a crisp natural-notation screen can genuinely cost you time and focus.
The ClassWiz packs 552 mathematical functions, including matrix operations, integration and differential calculus, equation solving, statistics, and a QR code feature that lets you scan your calculation into a free smartphone app for a graphical representation. That last feature is particularly useful for Canadian students who aren’t yet allowed a graphing calculator in their province’s exam policy but want to visualise functions during homework. Dual solar-and-battery power (LR44 battery backup) means it runs indefinitely in a bright classroom and won’t fail you when you’re writing in a dimly lit gym during a provincial assessment.
Reviewed by Canadian buyers on Amazon.ca, the fx-991EX consistently earns praise for its durability and value. The protective hardshell cover is a nice touch for students who toss their calculator into a backpack daily.
✅ 552 functions — covers everything from Algebra to Calculus
✅ Solar + battery power — practically never runs out
✅ QR code graphing — a free graphing tool built into your workflow
❌ No Computer Algebra System (CAS) — by design, for exam compliance
❌ Menu system has a learning curve for new users
Available on Amazon.ca. In the $30–$45 CAD range, the fx-991EX ClassWiz delivers outstanding value for any Canadian high school student from Grade 9 through to Grade 12.
2. Casio fx-991CW — The Upgraded ClassWiz for 2026
The Casio fx-991CW is the latest flagship in Casio Canada’s scientific lineup, replacing the fx-991EX with a significantly improved display and interface while keeping the same beloved dual-power system. The new 4-tone display uses higher contrast rendering that makes it noticeably easier to read in varied lighting — important if you’re writing exams under the inconsistent lighting common in older Canadian school buildings. According to Casio Canada’s official product page, the fx-991CW includes 540 functions across a revised menu structure that most students find more intuitive than earlier ClassWiz models.
In practice, what sets the fx-991CW apart is how thoughtfully Casio reorganised the interface. Variables are easier to access, switching between calculation modes is faster, and the equation solver workflow is more streamlined — which matters when you’re under time pressure in a Grade 12 Advanced Functions or Data Management exam. The QR code graphing feature is still present and now works with an updated Casio EDU+ app. Worth noting: while the fx-991EX had 552 functions and the CW has 540, the CW’s real improvement is usability, not raw function count.
Canadian students who already own a ClassWiz-era calculator (fx-991EX or fx-991ES) may not need to upgrade. But if you’re buying new in 2026, the fx-991CW is the smarter long-term investment.
✅ Improved 4-tone display — easier on the eyes
✅ More intuitive menu navigation
✅ Solar + battery — same reliable power system
❌ Slightly higher price point than the fx-991EX
❌ Learning curve if switching from TI ecosystem
Available on Amazon.ca. Priced in the $35–$55 CAD range — worth every dollar if you’re starting fresh.
3. Casio fx-991ES Plus 2nd Edition — The Budget-Friendly Workhorse
If you’re a parent shopping for a Grade 9 student who “just needs a calculator” for MPM1D or Foundations of Mathematics, the Casio fx-991ES Plus 2nd Edition is one of the most cost-effective choices on Amazon.ca in Canada. This older but highly capable model delivers 417 functions with Casio’s natural V.P.A.M. display, meaning fractions, roots, and powers appear in proper textbook format — not compressed into a single ugly line.
The fx-991ES Plus 2nd Edition covers matrix calculations, differential and integral calculus, equation solving, and full statistics functionality. For a calculator in its CAD price bracket, this is impressive. The solar-plus-battery power system is the same Casio reliability story you’ve come to expect: barely ever needs a battery change if the room has any light at all. Canadian buyers on Amazon.ca note it’s particularly durable — a well-documented virtue for a device that typically spends three years bouncing around inside a school bag.
Where it shows its age is the display resolution and menu depth compared to the fx-991EX or fx-991CW. It’s not as fast to navigate, and power users hunting for advanced statistical models or the QR code graphing feature won’t find them here. But for the student who needs a solid, exam-compliant calculator at a price that won’t strain a back-to-school budget in CAD, this model remains an excellent Canadian option.
✅ 417 functions — more than enough for Grades 9–11
✅ Lowest price point in the Casio natural-display lineup
✅ Solar + battery — reliable for years
❌ No QR code graphing feature
❌ Older, lower-resolution display compared to ClassWiz models
Available on Amazon.ca. In the $25–$38 CAD range — the smartest budget pick in Casio’s Canadian lineup.
4. Texas Instruments TI-30X Pro MathPrint — TI’s Secret Weapon
Here’s something most Canadian students don’t know: the TI-30X Pro MathPrint is Texas Instruments’ most capable non-graphing scientific calculator, and it’s been deliberately kept off the American market to avoid cannibalising their graphing calculator sales. Canadian and European students can access it freely on Amazon.ca, and it’s a genuinely impressive piece of hardware. The high-resolution LCD display — at 64×192 pixels — renders MathPrint notation cleanly, showing stacked fractions, proper exponents, and square roots exactly as they appear in textbooks.
What makes the TI-30X Pro MathPrint uniquely powerful is its persistent memory across modes. Unlike Casio calculators that reset your working memory when you switch between calculation modes, the TI-30X Pro MathPrint remembers your previous entries across the stack — you can browse back up through your history and push any prior result directly into a new calculation with a single key press. For complex multi-step problems in Calculus or Statistics, this workflow advantage is real and measurable. It runs on two lithium batteries only (no solar panel), which is the one practical downside for Canadian exam conditions.
The TI-30X Pro MathPrint includes three solvers (numeric equation, polynomial, and system of linear equations), an expanded set of regression models including natural exponential function regression, and a well-structured menu system that experienced TI users will adapt to immediately.
✅ Persistent history across modes — a genuine workflow advantage
✅ High-resolution MathPrint display
✅ Three equation solvers — ideal for senior math and science
❌ Battery-only power — no solar backup
❌ Higher price point than comparable Casio models
Available on Amazon.ca. In the $40–$60 CAD range — worth it for Grade 11–12 students in STEM-heavy courses.
5. Texas Instruments TI-30XS MultiView — The Ontario Classroom Standard
Walk into almost any Grade 9 math classroom in Ontario and you’ll see a sea of these. The TI-30XS MultiView has been a staple of Canadian high school mathematics for years, and its longevity speaks to how well it fits the curriculum from MPM1D through Grade 10 Principles of Mathematics. The four-line display lets you view and compare multiple calculations on one screen, and the MathPrint feature shows fractions, exponents, and roots in proper textbook notation.
What the TI-30XS MultiView does brilliantly is stay out of your way. The interface is clean, the learning curve is genuinely gentle for a Grade 9 student encountering a scientific calculator for the first time, and the solar-plus-battery power system ensures reliability throughout a full school year without a battery change. The toggle key for instant fraction-to-decimal conversion is a subtle but frequently appreciated feature that saves time during homework and test prep.
Its limitation is that it’s not designed to grow with students into senior math. When a Grade 10 student moves into Grade 11 Functions, they’ll find the TI-30XS MultiView starts to feel constrained — there are no matrix calculations, no advanced statistical regression models, and no equation solver. For those courses, upgrading to the TI-36X Pro or TI-30X Pro MathPrint becomes necessary.
✅ Simple, intuitive interface — ideal for first-time users
✅ MathPrint textbook display
✅ Solar + battery power
❌ Limited advanced functions — outgrown by Grade 11
❌ No equation solver or matrix calculations
Available on Amazon.ca. In the $20–$32 CAD range — the best entry-level TI calculator for Canadian students.
6. Texas Instruments TI-36X Pro — TI’s Best All-Rounder for Canada
If I had to recommend one Texas Instruments calculator for a Canadian high school student who wants to use the same device from Grade 9 through first-year university without ever outgrowing it, it would be the TI-36X Pro. This calculator is explicitly designed for courses where graphing calculators are not permitted — which describes a significant portion of Canadian high school and early university assessments — and it delivers a depth of functionality that competes comfortably with top-tier Casio models.
The four-line MultiView display supports up to four simultaneous calculations, and the MathPrint feature renders textbook notation cleanly. The TI-36X Pro includes three solvers (numeric equation, polynomial, and linear systems), numeric derivative and integral calculation, a comprehensive statistics package with multiple regression models, and full matrix and vector operations. It’s approved for SAT, ACT, and AP exams, which matters for Canadian students writing AP courses or considering cross-border applications to American universities.
Solar-plus-battery power is present, resolving the one practical drawback of the TI-30X Pro MathPrint. The overall build quality is solid, and Canadian buyers on Amazon.ca consistently comment on its durability and value for money over a multi-year ownership period.
✅ Covers Grade 9 through first-year university
✅ Solar + battery power
✅ Approved for SAT, ACT, AP — ideal for students eyeing US universities
❌ Larger footprint than Casio equivalents
❌ Interface takes more time to master than TI-30XS MultiView
Available on Amazon.ca. In the $30–$48 CAD range — arguably the best overall value in the TI scientific lineup for Canadian students.
7. Texas Instruments TI-30XIIS — The Entry-Level Pick That Just Works
The TI-30XIIS is the most affordable Texas Instruments scientific calculator available on Amazon.ca in Canada, and for students in Grades 9–10 who need a reliable, exam-compliant device without any unnecessary complexity, it delivers exactly what it promises. The two-line display shows your input on the top line and your result on the bottom — simple, readable, and fast.
It handles all standard high school functions: trigonometry, logarithms, fractions, statistics, and basic probability. The solar-plus-battery power is the same trusted TI system found throughout the lineup. It’s lightweight, durable, and backed by TI’s one-year limited warranty. For a parent trying to equip a Grade 9 student without spending a lot of CAD, this is the no-drama choice.
The honest trade-off: the two-line display and limited function set mean most students will outgrow this by Grade 11 and need to upgrade. Think of it as a great starter calculator rather than a long-term investment.
✅ Most affordable TI option on Amazon.ca
✅ Solar + battery power
✅ Simple, intuitive — ideal for Grade 9 beginners
❌ Two-line display — no MathPrint textbook notation
❌ Limited functions — not suitable for Grade 11+ courses
Available on Amazon.ca. In the $15–$25 CAD range — a solid budget choice, especially for younger high school students.
Setting Up Your Scientific Calculator for High School Success
Buying the right calculator is only half the battle — knowing how to get the most out of it from day one is the other half. Here’s a practical setup guide for both Casio and TI models that most students never bother to read in the manual.
First 24 hours: Run through your calculator’s mode settings before your first class. On Casio models, check that you’re in “Comp” (computation) mode for daily work and understand how to switch to “Stat” mode for data analysis. On TI calculators, verify whether you’re in MathPrint or Classic mode — MathPrint is almost always preferable for high school.
Angle measurement: This is the silent killer of test scores. Double-check that your calculator is set to “Degrees” (not Radians) before every trigonometry unit. Both Casio and TI display a small “D” or “R” indicator, but it’s easy to miss during a timed exam. Make it a habit to check this every single time you power on during an exam.
Battery maintenance: Even solar-powered models need their backup battery checked annually. A Canadian winter classroom — where low-light mornings are common from November through March — can challenge a weak solar panel. Keep a fresh LR44 (Casio) or AAA battery (TI-30XIIS) in your pencil case as backup.
Cold weather consideration: If you’re cycling or walking to school in a Canadian winter and your backpack sits outside, a battery left in sub-zero temperatures overnight can lose charge capacity. Lithium batteries (used in the TI-30X Pro MathPrint) perform better in cold conditions than standard alkaline cells — a small but real advantage in a Canadian context.
Common first-week mistake: Don’t memorise key sequences before understanding what mode you’re in. A sine calculation in Radian mode when you expected Degrees will return a completely different answer — and both will look plausible enough to miss during a test review.
Three Canadian Student Profiles: Which Calculator Fits You?
Profile 1 — Maya, Grade 9, Toronto 🇨🇦 Maya is starting MPM1D this fall at a public school in North York. Her teacher’s supply list says “any scientific calculator permitted.” She needs something reliable, easy to learn, and under $30 CAD. Best pick: TI-30XIIS or TI-30XS MultiView. The TI-30XIIS handles everything Maya needs this year and next, and the solar power means no mid-class battery scramble. If her parents want one calculator to last from Grade 9 through Grade 12, spending a bit more for the TI-30XS MultiView is the smarter investment.
Profile 2 — Liam, Grade 11, Calgary 🇨🇦 Liam is in Pure Mathematics 20 and Pre-Calculus 30, eyeing engineering at the University of Alberta. He writes Alberta Diploma Exams that have specific calculator restrictions. Best pick: Casio fx-991EX ClassWiz or TI-36X Pro. Both are within Alberta’s permitted calculator guidelines, both handle advanced functions through Calculus, and both will transition smoothly into first-year university. Liam should check Alberta Education’s current Diploma Exam calculator policy before purchasing, as rules are updated annually.
Profile 3 — Sophie, Grade 12, Vancouver 🇨🇦 Sophie is in AP Calculus BC and needs a calculator approved for AP exams. She values a clean display and intuitive navigation. Best pick: TI-36X Pro. It’s explicitly approved for AP exams, covers everything in the AP Calculus curriculum at the scientific calculator level, and its solar-plus-battery power system is ideal for Sophie’s 40-minute bus commute from North Vancouver where her bag sits in an unheated vestibule in November.
How to Choose a Casio vs Texas Instruments Scientific Calculator for High School in Canada
Choosing the right calculator for a Canadian high school student comes down to five practical criteria:
1. Grade level and course requirements. Grade 9–10 students need standard functions — trig, stats, fractions, logarithms. Grade 11–12 students in Functions, Advanced Functions, Calculus, or Data Management need matrix operations, equation solvers, and advanced statistics. Match the calculator’s capabilities to where the student will be in Grade 12, not just where they are today.
2. Provincial exam policy. Ontario’s EQAO Grade 9 Math Assessment uses an online platform with a built-in calculator for most questions. Alberta’s Diploma Exams publish a detailed, annually updated list of approved models. BC and other provinces have their own policies. Always verify your specific provincial policy before purchase. The EQAO official website and your provincial Ministry of Education are the authoritative sources.
3. Power source. Solar-plus-battery hybrid models (most Casio and the TI-30XS MultiView, TI-36X Pro, TI-30XIIS) are inherently more reliable for Canadian exam conditions — dimly lit gymnasiums, early morning exams in winter, and multi-hour testing sessions. Battery-only models like the TI-30X Pro MathPrint are excellent calculators, but you should carry a spare battery.
4. Budget in CAD. Set a realistic budget. For most Grade 9–10 students, $20–$35 CAD covers an excellent calculator. For Grade 11–12 students, investing $35–$55 CAD for a model that lasts through university is almost always worth it. Canadian pricing on Amazon.ca is typically slightly higher than equivalent US pricing on Amazon.com — this is expected given the exchange rate and import costs, and you avoid the cross-border warranty complications that come with ordering from .com.
5. Interface familiarity. If your school or teacher demonstrates a specific brand in class, there’s real value in matching that brand — you’ll follow demonstrations without translating between different key sequences.
What the Ontario Math Exam Calculator Policy Actually Means for You
Ontario students often ask: is my Casio or TI allowed on the EQAO? The honest answer in 2026 is that it’s complicated. The EQAO Grade 9 Assessment of Mathematics is delivered entirely online through a digital platform that includes a built-in calculator tool. Physical scientific calculators are not the primary tool for that specific assessment. However, your teacher-assessed classroom work — which forms a significant part of your final Grade 9 mark — absolutely involves your personal scientific calculator.
For Ontario students in Grade 10, 11, and 12, provincial or standardised assessment policies vary by course type. AP courses follow the College Board’s calculator policy. University/College pathway courses in Grade 12 may or may not permit calculators depending on the test. The OSSLT (Ontario Secondary School Literacy Test) does not involve calculators at all.
The practical takeaway: buy a capable scientific calculator for classroom learning and homework from Grade 9 onward. Verify the specific policy for any high-stakes assessment in your particular course and province — don’t assume. Alberta’s approach, for example, is notably more prescriptive, with a detailed annually updated document published by Alberta Education listing every approved and prohibited model for Diploma Exams.
For any Canadian student planning to write AP exams through their school, both the TI-36X Pro and the Casio fx-991EX ClassWiz fall within the College Board’s approved calculator categories as non-CAS scientific calculators.
Common Mistakes Canadian Students Make When Buying a Scientific Calculator
Buying the cheapest model and upgrading twice. The most expensive calculator decision you can make is buying a $15–$20 CAD entry-level model in Grade 9 and then needing a full upgrade by Grade 11. Spending $35–$45 CAD once on a model that covers Grade 9 through first-year university is almost always cheaper than two purchases.
Ignoring provincial exam restrictions. Purchasing a graphing calculator or a model with CAS (Computer Algebra System) without checking your province’s policy can result in your calculator being confiscated at the exam room door. Non-CAS scientific calculators like every model on this list are generally safe, but always verify.
Ordering from Amazon.com instead of Amazon.ca. Some models ship to Canada from .com, but warranty service for products purchased on .com and used in Canada can be complicated. Amazon.ca Prime members in Canada benefit from free shipping on most calculator orders over $35 CAD, and warranty claims stay within Canada.
Not checking the power source for winter conditions. A battery-only calculator left in an unheated school locker or backpack in January in Edmonton or Winnipeg may experience reduced battery performance. Solar-plus-battery hybrid models handle this better. If you do use a battery-only model, bring a spare battery to every exam.
Assuming one brand is universally better. Both Casio and Texas Instruments make excellent scientific calculators. The “right” choice depends on your specific course requirements, interface preferences, and budget in CAD — not on brand loyalty.
Features That Actually Matter (And Those That Don’t)
Features that matter:
Natural textbook display — whether it’s Casio’s Natural V.P.A.M. or TI’s MathPrint, seeing fractions and roots rendered in proper notation reduces transcription errors and exam stress. Every model on this list from the TI-30XS MultiView upward has this.
Equation solver — from Grade 11 onwards, having a built-in solver for polynomials and linear systems saves significant time during complex problem sets. The TI-36X Pro, TI-30X Pro MathPrint, Casio fx-991EX ClassWiz, fx-991CW, and fx-991ES Plus all include this.
Solar + battery power — genuinely important in Canadian winter classroom conditions with variable lighting.
Features that mostly don’t matter for high school:
Function count over 400 — the difference between 417 functions (fx-991ES Plus) and 552 functions (fx-991EX ClassWiz) is largely irrelevant for the Canadian high school curriculum. You’ll use maybe 30 functions regularly. More functions aren’t harmful, but don’t let a higher number justify a significant price increase if the other features are the same.
QR code graphing — useful for homework exploration, but not available during most exams. A nice bonus, not a buying factor.
Speed benchmarks — both Casio and TI scientific calculators are more than fast enough for any high school calculation. The speed difference between models is measured in milliseconds that you will never notice.
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Canadian Regulations & Exam Standards: What Every Student Should Know
Canada does not have a single national calculator policy — each province administers its own curriculum and assessment standards. This is actually good news for students, because it means provincial policies can be reviewed annually and updated to reflect new models like the Casio fx-991CW.
For a scientific calculator reference guide applicable to Canadian science standards, the Wikipedia entry on scientific calculators provides a useful historical and functional overview of the category — though for exam policy, always defer to your provincial Ministry of Education.
Key points for Canadian students in 2026:
- Ontario (EQAO): The Grade 9 Math Assessment is online with a built-in digital calculator. Physical calculators are used in classroom assessments. Senior-year exam policies vary by course.
- Alberta: The most prescriptive province. The Alberta Education Diploma Exam Calculator Policy is updated annually and available on alberta.ca. All models on this list are non-CAS scientific calculators, generally compliant — but verify before purchasing.
- BC, Manitoba, Saskatchewan, Atlantic provinces: Each has its own provincial assessment policies. Check your school’s course outline and your Ministry of Education’s website.
- Quebec: Students may have specific requirements for French-language labelling on school supplies in certain contexts, per Quebec’s language legislation. All major Casio and TI models sold in Canada include bilingual packaging and documentation.
The bottom line: scientific calculators without CAS (Computer Algebra Systems) — which describes every model in this guide — are generally permitted across Canadian high school assessments. When in doubt, confirm with your teacher before the exam.
FAQ
❓ What is the best scientific calculator for a Canadian high school student in 2026?
❓ Is the Casio fx-991EX ClassWiz allowed on Ontario math exams?
❓ Which is better for Canadian high school, Casio or Texas Instruments?
❓ Can I get free shipping on scientific calculators from Amazon.ca in Canada?
❓ Are scientific calculators available on Amazon.ca the same as Amazon.com versions?
Conclusion: Make the Call That’s Right for Your Canadian High School Journey
The debate between Casio vs Texas Instruments scientific calculator for high school ultimately comes down to this: both brands build excellent, reliable, exam-compliant calculators, and either will serve a Canadian student well through four years of high school — if you choose the right model for your grade level and course trajectory.
My honest recommendation for most Canadian students? If you’re starting Grade 9 and want one calculator that takes you all the way through Grade 12 and into first-year university without a midstream upgrade, invest around $35–$48 CAD in either the Casio fx-991EX ClassWiz or the TI-36X Pro. Both are available on Amazon.ca, both use solar-plus-battery power that handles Canadian classroom conditions reliably, and both offer the full function set you’ll need from linear equations in Grade 9 through to integration and matrix operations in Grade 12.
If budget is tight, the TI-30XIIS or Casio fx-991ES Plus 2nd Edition will serve a Grade 9–10 student well at under $30 CAD. If you’re a senior student heading into AP Calculus or first-year university-level science, the TI-30X Pro MathPrint or Casio fx-991CW are worth the premium.
Whatever you choose, verify the calculator is permitted for your specific provincial exam before the day you write it. A great calculator in a closed bag does nothing for your score.
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