Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 582 · 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. 1.18 × 8 =
2. 2.84 − 12 =
3. 3.64 × 9 =
4. 4.25 + 27 =
5. 5.70 − 29 =
6. 6.10% of ₹750 =
7. 7.What is the remainder when 62 is divided by 7?
8. 8.17² =
9. 9.28² =
10. 10.Best estimate of 13 × 16? (a) 2000 (b) 20 (c) 200
11. 11.294 ÷ 6 =
12. 12.69 + 7 =
13. 13.292 ÷ 4 =
14. 14.9 + 11 =
15. 15.You buy a cricket ball for ₹56 and pay with a ₹100 note. How much change do you get, in rupees?
16. 16.216 ÷ 9 =
17. 17.Half of 34 =
18. 18.2 + ? = 10
19. 19.20 laddoos are packed in boxes of 3. How many laddoos are left over?
20. 20.81 − 60 =
21. 21.7 + 6 =
22. 22.75 + 66 =
23. 23.61 − 48 =
24. 24.49 + 4 =
25. 25.120 ÷ 5 =
26. 26.506 − 489 =
27. 27.47 × 4 =
28. 28.What is the remainder when 19 is divided by 4?
29. 29.16 × 8 =
30. 30.692 + 99 =
31. 31.What is the remainder when 75 is divided by 9?
32. 32.Best estimate of 652 + 757? (a) 1700 (b) 1500 (c) 1300
33. 33.You buy a box of crayons for ₹380 and pay with a ₹500 note. How much change do you get, in rupees?
34. 34.61 × 6 =
35. 35.You start your homework at 4:45 and finish at 7:55. How many minutes did you work?
36. 36.77 − 56 =
37. 37.52 ÷ 4 =
38. 38.11² =
39. 39.You buy a box of crayons for ₹200 and pay with a ₹500 note. How much change do you get, in rupees?
40. 40.53 − 35 =

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