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Quizzes > Mathematics

Mental Arithmetic Test: Improve Speed and Accuracy

Quick, free mental math test to build speed and accuracy. Instant results.

Editorial: Review CompletedCreated By: Shivin SuriUpdated Aug 27, 2025
Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art illustration for mental math practice quiz on a coral background

This quiz helps you practice mental arithmetic and build speed and accuracy with quick, in-head calculations. Warm up with a basic math quiz, deepen skills with mental arithmetic practice, or try the mental maths test for younger learners. Get instant results and see where to improve.

What is 8 + 7?
14
15
13
16
Adding 8 and 7 yields 15 because when you combine the two single-digit numbers you reach a total of 15. Basic addition skills allow you to calculate sums quickly in your head. Regular practice with small numbers builds confidence for larger calculations.
What is 12 minus 5?
7
8
6
5
Subtracting 5 from 12 leaves 7. Mental subtraction often relies on counting down from the larger number to the smaller. Practicing with two-digit numbers helps improve speed and accuracy.
What is 9 × 3?
30
27
24
21
Multiplying 9 by 3 equals 27 because 9 added three times yields 27. Familiarity with the 9 times table speeds up mental multiplication. Many mental math tricks use patterns in multiplication tables.
What is 56 divided by 7?
6
7
9
8
56 divided by 7 equals 8 because 7 goes into 56 exactly eight times. Division facts help you break down larger numbers into equal groups quickly. Knowing key division pairs is crucial for mental math fluency.
What is 7 squared?
56
36
49
42
Squaring 7 means multiplying 7 by itself, which equals 49. Memorizing squares of single-digit numbers is a helpful mental math strategy. This knowledge accelerates more complex calculations.
What is 100 minus 47?
63
53
57
43
Subtracting 47 from 100 leaves 53. A common mental strategy is to subtract in steps, 100 minus 50 is 50, then add back 3 to get 53. Chunking subtraction makes it easier to handle two-digit numbers.
What is 11 + 19?
28
31
30
29
Adding 11 and 19 gives 30. You can pair 11 with 19 by recognizing 19 + 1 = 20 and then adding the remaining 10 yields 30. Breaking numbers into tens and ones simplifies mental addition.
What is 6 × 6?
32
30
36
42
Multiplying 6 by 6 equals 36, a key fact in the multiplication table. Rapid recall of square numbers improves mental math speed. Practice with squares and tables helps you calculate larger products.
What is 25% of 160?
40
45
50
35
Calculating 25% of a number is the same as dividing by 4. Dividing 160 by 4 gives 40. Percent-to-fraction conversions speed up mental percentage calculations.
What is 45 + 68?
123
103
113
112
Adding 45 and 68 gives 113 by summing tens (40 + 60 = 100) and ones (5 + 8 = 13). Combining those yields 113. Breaking numbers into place values aids mental addition.
What is 14 × 12?
182
154
172
168
Multiply 14 by 10 to get 140, then add 14 × 2 (28) to reach 168. Using distributive property simplifies mental multiplication.
What is 144 ÷ 12?
10
14
12
11
Dividing 144 by 12 gives 12 because 12 × 12 = 144. Recognizing square numbers and their roots speeds up division.
What is 19 + 28?
45
44
47
49
Adding 19 and 28 yields 47 by pairing 19 + 1 = 20 and 28 - 1 = 27, then adding 20 + 27 = 47. Compensation strategies help with mental addition.
What is 1,000 minus 789?
211
231
221
201
Subtracting 789 from 1,000 leaves 211. You can subtract 800 to get 200 and then add back 11 because you subtracted 11 too many. Decomposing numbers assists mental subtraction.
What is 37 × 4?
124
132
148
158
Multiplying 37 by 4 is like doubling twice: 37 × 2 = 74, then 74 × 2 = 148. Using doubling strategies simplifies certain multiplications.
What is 125 + 278?
393
423
403
413
Adding 125 and 278 yields 403 by summing hundreds (100 + 200 = 300), tens (20 + 70 = 90), and ones (5 + 8 = 13), then combining 300 + 90 + 13 = 403. Place-value addition is key to mental math.
What is 23 × 17?
381
391
401
371
Multiply 23 by 17 by breaking one factor: 23 × 10 = 230 and 23 × 7 = 161; sum is 391. The distributive property is a powerful mental math tool.
What is 7³?
289
343
321
392
Raising 7 to the power of 3 means 7 × 7 × 7 = 49 × 7 = 343. Knowing small powers saves time in mental calculations.
What is 81 ÷ 9 + 16 × 2?
49
36
41
43
First compute division: 81 ÷ 9 = 9; then multiplication: 16 × 2 = 32; finally add: 9 + 32 = 41. Following order of operations ensures correct results.
What is 45% of 600?
240
255
270
300
Calculate 10% of 600 = 60, so 40% = 4 × 60 = 240, then add 5% (30) to get 270. Breaking percentages into 10% increments aids mental computation.
What is two-fifths of 250?
100
75
125
50
Two-fifths means multiply 250 by 2/5: first divide 250 by 5 = 50, then multiply by 2 = 100. Fraction-to-decimal or fraction-to-fraction methods help in mental math.
What is 3??
243
216
512
125
3 to the power of 5 is 3 × 3 × 3 × 3 × 3 = 243. Recognizing patterns in powers helps to recall larger exponent values mentally.
What is 625 ÷ 25?
30
20
25
15
Dividing 625 by 25 is like dividing by 5 twice: 625 ÷ 5 = 125, then 125 ÷ 5 = 25. Using simple steps makes mental division easier.
What is 47 × 14?
654
642
672
658
Multiply 47 by 14 by using distributive property: 47 × 10 = 470 and 47 × 4 = 188; sum is 658. Breaking factors into tens and ones streamlines mental multiplication.
What is 17² + 23?
289
312
305
333
First compute 17² = 289, then add 23 to get 312. Combining square knowledge with addition requires multi-step mental processing.
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Study Outcomes

  1. Solve Mental Arithmetic Problems -

    Apply fast-thinking techniques to complete a variety of addition, subtraction, multiplication, and division questions entirely in your head.

  2. Apply Speed Strategies -

    Use proven shortcuts and number tricks to accelerate your mental math practice and slice precious seconds off each calculation.

  3. Improve Calculation Accuracy -

    Develop precise mental arithmetic skills by focusing on error reduction and consistency throughout the quiz.

  4. Boost Timed Performance -

    Build confidence under pressure by tackling rapid-fire challenges in this mental math test and tracking your response times.

  5. Analyze Progress and Patterns -

    Interpret your quiz results to pinpoint strengths, identify common mistakes in mental calculation tests, and target areas for improvement.

  6. Set Personalized Goals -

    Create a clear practice plan based on your performance metrics to advance your mental arithmetic practice and aim for higher scores.

Cheat Sheet

  1. Compensation & Chunking -

    Boost your mental math practice by breaking numbers into easy sums or differences, like turning 78+57 into 78+50+7. This compensation method speeds up mental arithmetic practice and reduces errors. Research from Harvard's math education journal confirms improved retrieval speed with this technique.

  2. Distributive Property & the 9-Trick -

    Use the distributive property for swift multiplication, such as computing 9×6 by doing (10×6)−6. This handy trick is ideal for mental math test prep and trains you to flexibly rearrange terms on the fly. The University of Oxford recommends mastering this for quicker mental calculation test performance.

  3. Squaring Near Base Numbers -

    Apply the identity (a±b)² = a²±2ab+b² to square numbers like 47: think of 50−3 and calculate 50²−2·50·3+3² =2209. Incorporating this formula into mental arithmetic test routines builds confidence and precision. Studies at Stanford University highlight its efficiency in mental math practice.

  4. Estimation & Rounding for Checks -

    Practice quick estimation by rounding factors - e.g. approximate 387×24 as 400×25 =10,000 to validate your exact solution. This error-checking step is essential for a polished mental calculation test and boosts overall accuracy. Educational research by the University of Michigan shows estimation skills correlate with higher problem-solving success.

  5. Core Tables & Mnemonic Devices -

    Memorize multiplication tables up to 12×12 and key squares/cubes, using catchy mnemonics like "one-six-nine for thirteen squared in no time." These memory aids cement foundational facts for any mental math test or mental arithmetic practice session. The National Council of Teachers of Mathematics endorses mnemonics to strengthen automatic recall.

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