Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 610 · 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. 1.156 ÷ 4 =
2. 2.52 laddoos are packed in boxes of 6. How many laddoos are left over?
3. 3.70 × 4 =
4. 4.64 − 23 =
5. 5.66 × 4 =
6. 6.49 + 7 =
7. 7.29 × 4 =
8. 8.A cricket match starts at 3:35 and the first innings ends at 6:25. How many minutes did the innings last?
9. 9.122 − 95 =
10. 10.20 + 22 =
11. 11.136 ÷ 8 =
12. 12.1 + ? = 10
13. 13.62 − 49 =
14. 14.You buy a kite for ₹116 and pay with a ₹500 note. How much change do you get, in rupees?
15. 15.Half of 66 =
16. 16.Double 97 =
17. 17.66 − 9 =
18. 18.52 + 24 =
19. 19.A film starts at 3:30 and ends at 6:30. How many minutes long is the film?
20. 20.50% of ₹260 =
21. 21.22² =
22. 22.23 + ? = 100
23. 23.10% of ₹730 =
24. 24.5% of ₹80 =
25. 25.10% of ₹190 =
26. 26.16 × 4 =
27. 27.You buy a water bottle for ₹454 and pay with a ₹500 note. How much change do you get, in rupees?
28. 28.You start your homework at 7:05 and finish at 7:45. How many minutes did you work?
29. 29.113 + 99 =
30. 30.648 + 99 =
31. 31.33 × 8 =
32. 32.82 − 22 =
33. 33.13² =
34. 34.60 − 14 =
35. 35.Best estimate of 86 × 44? (a) 3600 (b) 360 (c) 36000
36. 36.24 + 25 =
37. 37.Best estimate of 409 + 423? (a) 1000 (b) 800 (c) 600
38. 38.79 − 45 =
39. 39.4 + ? = 10
40. 40.You start your homework at 1:40 and finish at 4:25. How many minutes did you work?

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