Calculator Quiz: Keys, Functions & Math
Learn calculator keys, memory, percentages, scientific functions and the order of operations. Choose your level, see the correct answer, and take your time.
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Choose a focused 5-question round or try 10 mixed questions from all levels. You can repeat the quiz and improve your personal best.
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Browse more quizzes · Practise with the Scientific Calculator
How to use the Calculator Quiz
Choose a level and start the round. Select one of four answers and choose Check answer. Read the explanation to understand the method before going to the next question. After finishing, review your mistakes and retake the quiz.
For numerical work, open our free Scientific Calculator and test your own numbers.
Frequently asked questions
Is this a quiz about using calculators?
Yes. It covers calculator buttons, percentage operations, scientific functions, memory, order of operations and common calculation skills.
Do I need a special calculator to answer?
No. You can answer directly from your browser, and use the linked scientific calculator to practise afterwards.
More free practice
Explore the math and accounting games for puzzle-style learning, or choose another math, calculator or accounting quiz. These quizzes have original, self-contained questions with explanations and do not require an account.
Calculator skills: keys, memory and order of operations
Calculator keys help with different kinds of work. MC clears a stored memory value, MR recalls it, and M+ adds the current display to memory. Memory functions are separate from the visible calculation result, so check whether a question asks about a displayed value or a stored one.
Order of operations matters when using scientific calculators. The expression 8 + 4 × 3 equals 20 when multiplication is done before addition. With parentheses, (8 + 4) × 3 becomes 36. Some basic calculators use a different entry method, which is why understanding the question is more reliable than memorizing a single key sequence.
The percentage key can behave differently across calculator models. For a portable approach, 25% of 160 can be entered as 160 × 25 ÷ 100, giving 40. In trigonometry, angle mode also matters: sin(30°) is 0.5 in degree mode; entering 30 in radian mode is a different calculation.
Use the Scientific Calculator to try parentheses and functions. The Calculator Games directory offers additional number practice. Quiz explanations are learning aids, not a substitute for checking important financial or technical calculations.