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Casio fx-991CW Scientific Calculator vs Texas Instruments TI-30XS Multiview

Buy the Casio fx-991CW for high school and college math, science and engineering work: it has more functions, a higher-resolution display and Casio's ClassWiz menu system, and owners rate it well. Buy the TI-30XS MultiView if you want a simple, proven calculator for standardized tests and basic coursework, or if your class already uses TI menus. The Casio is the more capable machine; the TI is the easier one to pick up and is approved for SAT, ACT and AP exams.

  • Choose the Casio fx-991CW if you need advanced functions like equation solving, matrices, vectors, complex numbers or spreadsheet-style tables, or if you want a sharper display and a menu layout built for deeper math.
  • Choose the TI-30XS MultiView if you want a straightforward four-line calculator for test day and everyday classwork, with familiar TI menus and a protective cover included.

Prices

  • Casio fx-991CW Scientific Calculator: $25.99 at staples.com (last seen Nov 1)
  • Texas Instruments TI-30XS Multiview: $14.95 at Underwood Distributing Co. (last seen Nov 10)
  • Difference: the Texas Instruments TI-30XS Multiview is $11.04 cheaper than the Casio fx-991CW Scientific Calculator at the latest prices (Nov 1 and Nov 10)
Casio
Casio fx-991CW Advanced Scientific Calculator

Casio fx-991CW Scientific Calculator

Casio fx-991CW Advanced Scientific Calculator

4.6(62 ratings)
$25.99at staples.comChecked Nov 1
See all prices and details
Visit staples.com
Pros
  • Deep function set covers algebra through engineering courses
  • Sharp, high-resolution display
  • Equation solver and matrix/vector tools built in
  • Well rated by owners
Cons
  • Menu system takes time to learn
  • Cover may not be included
  • Overkill for basic arithmetic and test-only use
Texas Instruments
TI-30XS Multiview Calculator

Texas Instruments TI-30XS Multiview

TI-30XS Multiview Calculator

5(13 ratings)
$14.95at Underwood Distributing Co.Checked Nov 10
See all prices and details
Visit Underwood Distributing Co.
Pros
  • Approved for SAT, ACT and AP exams
  • MathPrint shows fractions and expressions as in textbooks
  • Four-line display lets you compare entries
  • Protective cover included
  • Simple, familiar TI menus
Cons
  • Fewer advanced functions than the Casio
  • Lower-resolution display
  • Smaller owner rating base

What separates them

Casio fx-991CW Scientific CalculatorTexas Instruments TI-30XS Multiview
DisplayHigh-resolution LCD with a multi-line layout and icon-based home menuFour-line, 16-character display
Function depthEquation solver, matrices, vectors, complex numbers, distributions and ratio calculationsCore scientific functions, fractions, statistics and (x,y) tables
Entry and editingClassWiz menu navigation with a catalog of functionsMathPrint shows expressions and fractions as in textbooks; edit, cut and paste entries
Test approvalAccepted on many standardized exams, but check your exam's approved listApproved for SAT, ACT and AP exams
PowerSolar with battery backupSolar and battery powered
Build and coverSlim handheld body; hard cover sold separately on some listingsDurable body; protective cover included
Ease of learningMore menus and modes to learnSimple layout and pull-down menus similar to graphing calculators

Price history

$25.99$24.99
Nov 1Nov 10
  • Casio fx-991CW Scientific Calculator: lowest $24.99 on Nov 9 at Office Depot; $24.99 on Nov 10.

Prices at every store

Casio fx-991CW Scientific Calculator

  • TargetNew

    In stock

    $24.99+ $5.99 shippingChecked Nov 8
    Visit Target
  • University of Alabama Supply StoreNew

    In stock

    $27.99+ $5.99 shippingChecked Nov 8
    Visit University of Alabama Supply Store
  • WalmartNew

    In stock

    $29.98+ $6.99 shippingChecked Nov 10
    Visit Walmart
  • staples.comNew

    Availability unknown

    $25.99Checked Nov 1
    Visit staples.com

Also available at

  • eBayCheck price at eBay
  • WalmartCheck price at Walmart

Store links may earn us a commission. Some prices via Klarna.

All 9 stores and price history →

Texas Instruments TI-30XS Multiview

  • Underwood Distributing Co.New

    In stockReturn policy

    $14.95Checked Nov 10
    Visit Underwood Distributing Co.
  • Bliss EDUNew

    In stockReturn policy

    $16.97Checked Nov 10
    Visit Bliss EDU
  • Bill's Business SupplyNew

    In stockReturn policy

    $19.63Checked Nov 10
    Visit Bill's Business Supply
  • University Book StoreNew

    In stockReturn policy

    $19.99Checked Nov 10
    Visit University Book Store
All 10 stores and price history →

Specs compared

SpecCasio fx-991CW Scientific CalculatorTexas Instruments TI-30XS Multiview
ColorGray—
size6.4" tall x 3.0" wide x 0.4" deep—
Solar PoweredYes—
TypeHandheld—
Digit Count2 digits—

What reviewers say

Casio fx-991CW Scientific Calculator

  • 4.6 / 562 ratings

Owners rate the fx-991CW highly, with 4.6 out of 5 from 62 ratings. Most praise the sharp display and the easier menu system, while a few miss the direct keys of the older fx-991EX.

What people mention
  • DisplayPraisedOwners say the high-resolution screen makes fractions, roots and long equations easy to read.
  • InterfaceMixedThe icon-based menu is praised as easier to learn but criticised as slower than direct function keys.
  • BuildPraisedReviewers describe the calculator as sturdy and well made for daily classroom use.
  • PowerPraisedThe solar panel with battery backup is reported to keep the calculator running without frequent battery changes.

Texas Instruments TI-30XS Multiview

  • 5 / 513 ratings

Owners rate it very highly and describe it as reliable and easy to use for school and test day. The four-line display and textbook-style entry are the features most often praised.

What people mention
  • DisplayPraisedOwners like seeing several lines of work at once instead of one entry at a time.
  • MathPrint entryPraisedReviewers say fractions and exponents appear the way they do in textbooks, which reduces entry mistakes.
  • Exam approvalPraisedBuyers value that it is allowed on the SAT, ACT and AP exams.
  • Key layoutMixed

Questions and answers

Which is better for the SAT or ACT?
The TI-30XS MultiView is explicitly approved for SAT, ACT and AP exams, so it is the safer pick for test day. The Casio fx-991CW is accepted on many exams, but confirm your exam's approved calculator list before you rely on it.
Which is better for engineering or calculus courses?
The Casio fx-991CW. Its equation solver, matrix, vector and complex-number tools cover more of what those courses ask for, and its display handles longer expressions better.
Which is easier to learn?
The TI-30XS MultiView. Its four-line display and pull-down menus are simple, and MathPrint shows fractions the way textbooks do. The Casio's ClassWiz menus reward practice but take longer to get comfortable with.
Does either one come with a cover?
The TI-30XS MultiView includes a protective cover. The Casio fx-991CW is a slim handheld, and a cover is not always included, so check the box contents before you buy.
Is the Casio worth stepping up to over the TI?
Yes if you will use the extra functions, such as equation solving, matrices or statistics distributions. No if you mainly need a reliable calculator for tests and basic homework, where the TI is simpler and approved.
Do both run on solar power?
Yes. Both are solar powered with battery backup, so they keep working in low light.

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Some find the small, densely packed keys take time to learn.