Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 492 · 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. 1.11² =
2. 2.104 ÷ 8 =
3. 3.A film starts at 2:55 and ends at 4:00. How many minutes long is the film?
4. 4.75 + 7 =
5. 5.A film starts at 5:05 and ends at 8:20. How many minutes long is the film?
6. 6.A train leaves at 8:20 and reaches the next city at 10:15. How many minutes is the journey?
7. 7.A cricket match starts at 8:40 and the first innings ends at 11:00. How many minutes did the innings last?
8. 8.You buy a notebook for ₹72 and pay with a ₹100 note. How much change do you get, in rupees?
9. 9.30 + ? = 100
10. 10.501 − 497 =
11. 11.13² =
12. 12.56 + 71 =
13. 13.121 − 78 =
14. 14.22 − 9 =
15. 15.112 ÷ 8 =
16. 16.You start your homework at 7:05 and finish at 9:30. How many minutes did you work?
17. 17.Half of 62 =
18. 18.29 + 19 =
19. 19.24 + 26 =
20. 20.38 × 3 =
21. 21.You start your homework at 8:05 and finish at 9:00. How many minutes did you work?
22. 22.28 + 7 =
23. 23.A film starts at 1:20 and ends at 4:15. How many minutes long is the film?
24. 24.43 + 65 =
25. 25.61 − 14 =
26. 26.57 × 4 =
27. 27.315 ÷ 9 =
28. 28.29 + 28 =
29. 29.16 + ? = 100
30. 30.95 − 64 =
31. 31.50% of ₹570 =
32. 32.25 + 6 =
33. 33.Best estimate of 24 × 46? (a) 1000 (b) 10000 (c) 100
34. 34.You buy a cricket ball for ₹18 and pay with a ₹100 note. How much change do you get, in rupees?
35. 35.87 + ? = 100
36. 36.3 + ? = 10
37. 37.63 + 86 =
38. 38.26 + 6 =
39. 39.Half of 160 =
40. 40.9 + 2 =

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