Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 676 · 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 5:25 and ends at 6:45. How many minutes long is the film?
2. 2.85 + 68 =
3. 3.304 ÷ 4 =
4. 4.1003 − 979 =
5. 5.62 laddoos are packed in boxes of 4. How many laddoos are left over?
6. 6.60 ÷ 4 =
7. 7.Best estimate of 151 + 555? (a) 800 (b) 600 (c) 1000
8. 8.You buy a kite for ₹217 and pay with a ₹500 note. How much change do you get, in rupees?
9. 9.67 − 15 =
10. 10.42 + 86 =
11. 11.63 − 51 =
12. 12.19² =
13. 13.61 + 9 =
14. 14.85 + 6 =
15. 15.124 ÷ 4 =
16. 16.522 − 498 =
17. 17.39 laddoos are packed in boxes of 5. How many laddoos are left over?
18. 18.9 + 8 =
19. 19.93 − 27 =
20. 20.18 × 8 =
21. 21.35 + 34 =
22. 22.651 + 99 =
23. 23.86 + 68 =
24. 24.35 + 6 =
25. 25.74 − 21 =
26. 26.5% of ₹690 =
27. 27.204 − 184 =
28. 28.50% of ₹640 =
29. 29.72 ÷ 4 =
30. 30.238 ÷ 7 =
31. 31.31 × 8 =
32. 32.21 × 4 =
33. 33.43 + 29 =
34. 34.5 + ? = 10
35. 35.59 + 2 =
36. 36.329 ÷ 7 =
37. 37.150 ÷ 6 =
38. 38.You buy a notebook for ₹482 and pay with a ₹500 note. How much change do you get, in rupees?
39. 39.A cricket match starts at 1:15 and the first innings ends at 3:25. How many minutes did the innings last?
40. 40.66 − 32 =

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