Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 352 · 40 questions

How to do it in your head (Look first): A 9, 19 or 99 → round and adjust. Two close numbers → count up (or near doubles when adding). × or ÷ by 4 or 8 → double or halve; other sums → split into tens and ones.

1. 1.30 + 19 =
2. 2.41 × 9 =
3. 3.23² =
4. 4.15² =
5. 5.3 + ? = 10
6. 6.What is the remainder when 101 is divided by 8?
7. 7.48 + 9 =
8. 8.50 × 4 =
9. 9.80 + 29 =
10. 10.67 − 29 =
11. 11.Half of 148 =
12. 12.114 ÷ 3 =
13. 13.22² =
14. 14.You buy a storybook for ₹90 and pay with a ₹100 note. How much change do you get, in rupees?
15. 15.612 ÷ 9 =
16. 16.28² =
17. 17.13 + 12 =
18. 18.87 × 9 =
19. 19.62 − 32 =
20. 20.96 × 6 =
21. 21.67 − 28 =
22. 22.107 children stand in rows of 8. How many full rows can they make?
23. 23.96 ÷ 3 =
24. 24.526 − 478 =
25. 25.You buy a water bottle for ₹64 and pay with a ₹100 note. How much change do you get, in rupees?
26. 26.28 × 8 =
27. 27.2 + ? = 10
28. 28.4 + ? = 10
29. 29.98 − 61 =
30. 30.What is the remainder when 38 is divided by 3?
31. 31.Half of 96 =
32. 32.29 laddoos are packed in boxes of 6. How many laddoos are left over?
33. 33.48 ÷ 4 =
34. 34.Best estimate of 594 + 151? (a) 600 (b) 1000 (c) 800
35. 35.318 − 288 =
36. 36.17 + 29 =
37. 37.40 + 33 =
38. 38.89 + 59 =
39. 39.A train leaves at 4:55 and reaches the next city at 7:05. How many minutes is the journey?
40. 40.77 × 4 =

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