Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 153 · 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.A film starts at 6:10 and ends at 7:55. How many minutes long is the film?
2. 2.What is the remainder when 31 is divided by 3?
3. 3.87 laddoos are packed in boxes of 6. How many laddoos are left over?
4. 4.10 + 12 =
5. 5.50% of ₹700 =
6. 6.49 + 2 =
7. 7.17 + 9 =
8. 8.120 ÷ 8 =
9. 9.5 + ? = 10
10. 10.422 − 99 =
11. 11.31 + ? = 100
12. 12.Best estimate of 18 × 72? (a) 140 (b) 14000 (c) 1400
13. 13.34 × 5 =
14. 14.26 + 25 =
15. 15.31 × 3 =
16. 16.104 − 76 =
17. 17.93 ÷ 3 =
18. 18.15² =
19. 19.77 + 42 =
20. 20.60 + 18 =
21. 21.59 + 6 =
22. 22.52 + ? = 100
23. 23.A cricket match starts at 6:45 and the first innings ends at 9:00. How many minutes did the innings last?
24. 24.11² =
25. 25.106 − 84 =
26. 26.1 + ? = 10
27. 27.25 × 8 =
28. 28.29² =
29. 29.48 + 9 =
30. 30.55 + 6 =
31. 31.40 + ? = 100
32. 32.15 × 4 =
33. 33.567 ÷ 7 =
34. 34.31 × 8 =
35. 35.37 × 8 =
36. 36.47 laddoos are packed in boxes of 3. How many laddoos are left over?
37. 37.38 + 3 =
38. 38.56 − 28 =
39. 39.A cricket match starts at 8:35 and the first innings ends at 9:25. How many minutes did the innings last?
40. 40.21 × 8 =

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