Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 472 · 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. 1.53 − 37 =
2. 2.14 × 3 =
3. 3.10% of ₹810 =
4. 4.494 + 99 =
5. 5.28 + 4 =
6. 6.145 ÷ 5 =
7. 7.61 − 28 =
8. 8.44 laddoos are packed in boxes of 6. How many laddoos are left over?
9. 9.Best estimate of 293 + 805? (a) 1100 (b) 900 (c) 1300
10. 10.25% of ₹660 =
11. 11.18 × 8 =
12. 12.Best estimate of 537 + 876? (a) 1400 (b) 1600 (c) 1200
13. 13.You start your homework at 2:10 and finish at 4:20. How many minutes did you work?
14. 14.Best estimate of 137 + 365? (a) 700 (b) 500 (c) 300
15. 15.18 + 6 =
16. 16.You buy a water bottle for ₹184 and pay with a ₹500 note. How much change do you get, in rupees?
17. 17.87 × 6 =
18. 18.529 − 485 =
19. 19.65 children stand in rows of 8. How many full rows can they make?
20. 20.6 + 7 =
21. 21.7 + 8 =
22. 22.31 + ? = 100
23. 23.196 ÷ 4 =
24. 24.48 + 4 =
25. 25.11 + 10 =
26. 26.47 + 9 =
27. 27.30 laddoos are packed in boxes of 4. How many laddoos are left over?
28. 28.87 + 9 =
29. 29.81 − 47 =
30. 30.A film starts at 4:35 and ends at 6:15. How many minutes long is the film?
31. 31.85 × 3 =
32. 32.10% of ₹300 =
33. 33.526 − 99 =
34. 34.A film starts at 6:30 and ends at 8:05. How many minutes long is the film?
35. 35.Double 68 =
36. 36.62 × 4 =
37. 37.A cricket match starts at 8:35 and the first innings ends at 9:05. How many minutes did the innings last?
38. 38.47 × 5 =
39. 39.5% of ₹790 =
40. 40.60 − 37 =

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