Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 468 · 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. 1.27 + ? = 100
2. 2.A train leaves at 6:55 and reaches the next city at 9:30. How many minutes is the journey?
3. 3.A film starts at 1:45 and ends at 3:55. How many minutes long is the film?
4. 4.63 + 15 =
5. 5.85 − 75 =
6. 6.Double 39 =
7. 7.17² =
8. 8.31 × 6 =
9. 9.66 + ? = 100
10. 10.5% of ₹820 =
11. 11.10% of ₹610 =
12. 12.Double 77 =
13. 13.32 laddoos are packed in boxes of 5. How many laddoos are left over?
14. 14.129 − 92 =
15. 15.10 + 12 =
16. 16.35 − 9 =
17. 17.84 + ? = 100
18. 18.37 × 4 =
19. 19.33 + ? = 100
20. 20.61 × 4 =
21. 21.104 − 67 =
22. 22.68 + 8 =
23. 23.A cricket match starts at 3:40 and the first innings ends at 4:25. How many minutes did the innings last?
24. 24.Half of 64 =
25. 25.22² =
26. 26.15 + 6 =
27. 27.17 + 19 =
28. 28.A cricket match starts at 6:00 and the first innings ends at 6:40. How many minutes did the innings last?
29. 29.10% of ₹200 =
30. 30.78 laddoos are packed in boxes of 5. How many laddoos are left over?
31. 31.6 + ? = 10
32. 32.11 + 13 =
33. 33.53 + ? = 100
34. 34.22 + 24 =
35. 35.238 ÷ 7 =
36. 36.20 + ? = 100
37. 37.Double 98 =
38. 38.10% of ₹310 =
39. 39.Best estimate of 268 + 392? (a) 900 (b) 500 (c) 700
40. 40.82 × 9 =

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