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Quizzes > Mathematics

Mental maths quiz class 4: build speed and accuracy

Quick, free maths speed test grade 4. Instant results.

Editorial: Review CompletedCreated By: Callum WhalleyUpdated Aug 23, 2025
Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art style Class 4 mental math quiz illustration with math symbols for addition multiplication on dark blue background

This Class 4 mental maths quiz helps you build speed and accuracy in addition, subtraction, and multiplication without a calculator. Work through quick questions, see instant scores, and revisit tricky topics. For broader revision, try our class 4 maths quiz, focus on times tables with a multiplication quiz for grade 4, or build everyday skills with mental maths practice.

What is 5 + 7?
12
13
14
11
To find the sum of 5 and 7, you combine the quantities. Starting at 5 and counting 7 more gets you to 12. This uses basic addition facts that students memorize. Learn more at .
What is 12 - 5?
7
5
8
6
Subtraction involves taking the second number away from the first. Removing 5 from 12 leaves 7. This is a basic subtraction fact that builds number sense. Learn more at .
What is 3 × 4?
7
12
14
11
Multiplication is repeated addition. Multiplying 3 by 4 means adding 3 together 4 times, which equals 12. This helps with understanding arrays and area models. Learn more at .
What is 16 ÷ 2?
8
4
10
6
Division splits a number into equal parts. Dividing 16 by 2 means splitting it into 2 equal groups, each of size 8. This is a core fact from division tables. Learn more at .
What is 9 + 6?
16
13
15
14
Adding 9 and 6 involves combining both values. Starting at 9 and counting 6 more gets to 15. This is a foundational addition fact students memorize. Learn more at .
What is 15 - 7?
6
8
7
9
Subtracting 7 from 15 means removing 7 units from 15. The result is 8. Practicing these facts improves mental subtraction speed. Learn more at .
What is 2 × 8?
14
12
16
18
Multiplication of 2 by 8 is equivalent to adding 2 eight times, which equals 16. Learning small multiplication tables aids in mental math. Learn more at .
What is 18 ÷ 3?
5
4
9
6
Dividing 18 by 3 splits it into 3 equal groups, each containing 6. Recognizing division as the inverse of multiplication helps solve such problems. Learn more at .
What is 7 + 5?
11
13
10
12
To add 7 and 5, you start from 7 and count five more to reach 12. This basic addition helps build fluency in mental calculations. Learn more at .
What is 14 - 6?
6
9
7
8
Subtracting 6 from 14 removes six units, leaving 8. Mastering subtraction facts is key for quick mental arithmetic. Learn more at .
What is 4 × 5?
25
10
20
15
Multiplying 4 by 5 means adding 4 together five times, resulting in 20. Knowing multiplication tables speeds up mental math. Learn more at .
What is 20 ÷ 4?
5
6
3
4
Dividing 20 by 4 splits it into 4 equal parts, each of size 5. Understanding simple division facts enhances calculation speed. Learn more at .
What is 25 + 17?
43
42
40
41
Adding 25 and 17 involves combining tens and units separately: 20+10=30 and 5+7=12, then 30+12=42. Breaking numbers into parts simplifies mental addition. Learn more at .
What is 50 - 28?
22
20
23
21
Subtract 28 from 50 by subtracting tens and units: 50-20=30, then 30-8=22. Decomposing numbers helps in mental subtraction. Learn more at .
What is 6 × 7?
42
48
40
36
Multiplying 6 by 7 can be understood as 6 groups of 7, which total 42. Practice with multiplication tables improves recall speed. Learn more at .
What is 36 ÷ 6?
8
5
6
7
Dividing 36 by 6 splits 36 into 6 equal groups of 6. Recognizing that 6×6=36 helps verify this. Learn more at .
What is 48 + 25?
74
73
72
75
Add tens and units separately: 40+20=60 and 8+5=13, then 60+13=73. Breaking numbers into parts simplifies the process. Learn more at .
What is 100 - 47?
53
55
52
54
Subtracting 47 from 100 is easier by subtracting from 100: 100-40=60, then 60-7=53. This method uses friendly numbers for quick calculation. Learn more at .
What is 9 × 8?
72
64
70
80
Multiplying 9 by 8 can be seen as 9×(10-2)=90-18=72. This trick can speed up multiplication mentally. Learn more at .
What is 81 ÷ 9?
7
9
6
8
Since 9×9=81, dividing 81 by 9 results in 9. Recognizing multiplication facts helps with division. Learn more at .
What is 34 + 19?
53
52
51
54
Add tens and units separately: 30+10=40 and 4+9=13, then 40+13=53. This method breaks the problem into simpler steps. Learn more at .
What is 65 - 17?
50
48
47
49
Subtract tens and units separately: 65-10=55 and 55-7=48. Decomposing numbers into tens and units simplifies subtraction. Learn more at .
What is 7 × 9?
72
60
63
54
Multiplying 7 by 9 can be done as 7×10?7=70?7=63. This compensation method is useful for quick calculations. Learn more at .
What is 64 ÷ 8?
9
7
6
8
Since 8×8=64, dividing 64 by 8 gives 8. Familiarity with multiplication tables makes division easier. Learn more at .
What is 125 + 376?
501
499
495
502
Add hundreds, tens, and units separately: 100+300=400, 20+70=90, 5+6=11, then 400+90+11=501. Aligning place values helps maintain accuracy. Learn more at .
What is 1000 - 675?
305
315
335
325
Subtracting 675 from 1000: 1000-600=400, then 400-75=325. Breaking the subtraction into steps with round numbers aids mental calculation. Learn more at .
What is 45 × 12?
540
600
450
520
Use distributive property: 45×(10+2)=45×10+45×2=450+90=540. Breaking into simpler multiplications makes mental math easier. Learn more at .
What is 144 ÷ 12?
14
12
13
11
Since 12×12=144, dividing 144 by 12 equals 12. Recognizing square numbers helps with quick division. Learn more at .
What is 37 + 58?
97
94
96
95
Add tens and units: 30+50=80 and 7+8=15, then combine to 80+15=95. Decomposing numbers aids fast addition. Learn more at .
What is 200 - 123?
79
78
77
76
Subtract hundreds, tens, and units as needed: 200-100=100, 100-23=77. Using round numbers simplifies mental subtraction. Learn more at .
What is 24 × 15?
380
350
340
360
Use distributive property: 24×(10+5)=240+120=360. Breaking into parts simplifies complex multiplication. Learn more at .
What is 324 ÷ 18?
16
18
19
17
Since 18×18=324, dividing 324 by 18 equals 18. Recognition of multiplication tables helps in division. Learn more at .
What is 89 + 67?
155
154
156
157
Add tens and units separately: 80+60=140 and 9+7=16, then 140+16=156. Ensuring place values align prevents mistakes. Learn more at .
What is 500 - 289?
213
212
211
210
Subtract by breaking into parts: 500-200=300, then 300-89=211. Using round numbers first makes calculation easier. Learn more at .
What is 28 × 14?
388
384
396
392
Use distributive property: 28×(10+4)=280+112=392. Breaking multiplication into smaller parts aids mental calculation. Learn more at .
What is 360 ÷ 15?
24
22
25
23
Divide 360 by 15 by first dividing by 5 then by 3: 360÷5=72 and 72÷3=24. Factoring simplifies division steps in mental math. Learn more at .
What is 123 + 456 + 789?
1368
1388
1378
1358
Add sequentially: 123+456=579, then 579+789=1368. Grouping and stepwise addition prevent errors in multi-digit sums. Learn more at .
What is (15 × 12) + (120 ÷ 5)?
200
204
202
208
Compute each part: 15×12=180 and 120÷5=24, then sum 180+24=204. Applying order of operations ensures correct results. Learn more at .
What is (18 × 7) ? (84 ÷ 7)?
116
118
114
112
First calculate 18×7=126 and 84÷7=12, then subtract: 126?12=114. Understanding inverse operations helps solve such combined problems quickly. Learn more at .
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Study Outcomes

  1. Understand core mental calculation techniques -

    Learn foundational strategies for solving addition, subtraction, and multiplication problems quickly and accurately in your head.

  2. Apply speed-boosting shortcuts -

    Use proven tricks and shortcuts to streamline your thought process during the mental math test and improve your reaction time.

  3. Enhance numerical confidence -

    Build self-assurance by completing a variety of quick-fire questions in this mental arithmetic quiz designed for Class 4 learners.

  4. Track and evaluate progress -

    Measure your performance on each section of the mental mathematics test to identify strengths and areas for improvement.

  5. Build versatile problem-solving skills -

    Develop adaptable methods that can be applied to mental calculation test tasks in both academic and everyday scenarios.

  6. Demonstrate accuracy under time pressure -

    Practice completing the mental math quiz within set time limits to boost both precision and speed.

Cheat Sheet

  1. Rounding and Compensation -

    Master quick addition and subtraction by rounding to the nearest ten or hundred and then compensating. For example, for 398 + 467, round 398 to 400 (400 + 467 = 867) and subtract 2 to get 865 - a method endorsed by the National Council of Teachers of Mathematics. This strategy lightens mental load during your next mental math test and builds speed.

  2. Distributive Property for Multiplication -

    Break complex products into simpler chunks using a × (b + c) = a × b + a × c. In a mental arithmetic quiz, calculate 6 × 27 as 6 × (30 - 3) = 180 - 18 = 162, a tip recommended by Cambridge's NRICH project. This trick turns daunting multiplication into two easy steps.

  3. Multiplying by 11 Trick -

    Use the famous two-digit 11 rule: for ab × 11, write a, then a + b, then b. So 23 × 11 becomes 2 (2+3)=5 3 = 253, a method popularized by Math Forum resources. It's a speedy hack for mental math quizzes that always impresses.

  4. Doubles and Halves Strategy -

    When multiplying even numbers, halve one factor and double the other to keep products manageable. For instance, 8 × 25 turns into 4 × 50 = 200, a tip supported by UNESCO's math education guidelines. It's perfect for rapid-fire mental calculation tests.

  5. Divisibility Rules for 3 and 9 -

    Check if the sum of digits is divisible by 3 or 9 to weed out large multiples quickly. For example, since 4 + 7 + 8 = 19 (not a multiple of 3), 478 isn't divisible by 3 - a rule featured in many university math curricula. Mastering these tests speeds up your mental mathematics test and sharpens number sense.

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