Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 644 · 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. 1.406 ÷ 7 =
2. 2.107 − 29 =
3. 3.55 × 7 =
4. 4.Double 21 =
5. 5.1027 − 991 =
6. 6.64 × 5 =
7. 7.506 − 480 =
8. 8.A cricket match starts at 8:45 and the first innings ends at 10:20. How many minutes did the innings last?
9. 9.31 × 7 =
10. 10.27 × 8 =
11. 11.53 × 8 =
12. 12.You buy a kite for ₹27 and pay with a ₹100 note. How much change do you get, in rupees?
13. 13.60 ÷ 4 =
14. 14.12 + 13 =
15. 15.A film starts at 7:50 and ends at 9:45. How many minutes long is the film?
16. 16.49 + 14 =
17. 17.96 ÷ 4 =
18. 18.What is the remainder when 110 is divided by 7?
19. 19.6 + 8 =
20. 20.26² =
21. 21.11 + 10 =
22. 22.You start your homework at 6:15 and finish at 8:20. How many minutes did you work?
23. 23.Double 89 =
24. 24.176 ÷ 8 =
25. 25.30 + 32 =
26. 26.What is the remainder when 66 is divided by 5?
27. 27.You start your homework at 7:30 and finish at 8:35. How many minutes did you work?
28. 28.A film starts at 5:45 and ends at 6:15. How many minutes long is the film?
29. 29.72 − 61 =
30. 30.Best estimate of 590 + 511? (a) 1100 (b) 1300 (c) 900
31. 31.You buy a kite for ₹37 and pay with a ₹100 note. How much change do you get, in rupees?
32. 32.Best estimate of 175 + 562? (a) 1000 (b) 800 (c) 600
33. 33.34 laddoos are packed in boxes of 3. How many laddoos are left over?
34. 34.40 × 8 =
35. 35.76 − 26 =
36. 36.61 × 9 =
37. 37.68 − 53 =
38. 38.97 − 47 =
39. 39.73 − 19 =
40. 40.38 + 61 =

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