Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 827 · 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. 1.33 × 3 =
2. 2.72 − 29 =
3. 3.You buy a water bottle for ₹420 and pay with a ₹500 note. How much change do you get, in rupees?
4. 4.222 ÷ 3 =
5. 5.Best estimate of 692 + 234? (a) 900 (b) 1100 (c) 700
6. 6.405 ÷ 5 =
7. 7.32 laddoos are packed in boxes of 5. How many laddoos are left over?
8. 8.526 − 490 =
9. 9.You start your homework at 5:50 and finish at 6:35. How many minutes did you work?
10. 10.15 × 8 =
11. 11.14 + 15 =
12. 12.40 + 41 =
13. 13.83 + 51 =
14. 14.93 × 4 =
15. 15.A film starts at 1:10 and ends at 3:45. How many minutes long is the film?
16. 16.56 laddoos are packed in boxes of 5. How many laddoos are left over?
17. 17.You start your homework at 1:35 and finish at 2:45. How many minutes did you work?
18. 18.360 + 99 =
19. 19.A film starts at 1:15 and ends at 2:30. How many minutes long is the film?
20. 20.Best estimate of 433 + 728? (a) 900 (b) 1300 (c) 1100
21. 21.Best estimate of 339 + 158? (a) 700 (b) 500 (c) 300
22. 22.12² =
23. 23.35 × 3 =
24. 24.25 laddoos are packed in boxes of 3. How many laddoos are left over?
25. 25.71 − 55 =
26. 26.18 × 4 =
27. 27.104 ÷ 4 =
28. 28.16 + ? = 100
29. 29.You buy a storybook for ₹16 and a pen for ₹16. You pay with a ₹100 note. How much change do you get, in rupees?
30. 30.Best estimate of 494 + 329? (a) 600 (b) 800 (c) 1000
31. 31.21 + 29 =
32. 32.78 + 7 =
33. 33.108 ÷ 4 =
34. 34.80 − 36 =
35. 35.50% of ₹850 =
36. 36.27 × 4 =
37. 37.46 + 9 =
38. 38.You buy a cricket ball for ₹46 and pay with a ₹100 note. How much change do you get, in rupees?
39. 39.224 ÷ 8 =
40. 40.93 − 62 =

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