Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 958 · 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. 1.26 laddoos are packed in boxes of 5. How many laddoos are left over?
2. 2.You buy a box of crayons for ₹150 and pay with a ₹500 note. How much change do you get, in rupees?
3. 3.13² =
4. 4.30 + 65 =
5. 5.Best estimate of 81 × 61? (a) 4800 (b) 48000 (c) 480
6. 6.75 + 6 =
7. 7.79 − 21 =
8. 8.302 − 279 =
9. 9.53 + ? = 100
10. 10.59 × 4 =
11. 11.69 − 32 =
12. 12.35 + 9 =
13. 13.56 + 9 =
14. 14.25% of ₹380 =
15. 15.25% of ₹590 =
16. 16.4 + ? = 10
17. 17.71 − 27 =
18. 18.47 × 4 =
19. 19.43 − 29 =
20. 20.108 ÷ 4 =
21. 21.76 + 19 =
22. 22.You buy a pencil box for ₹491 and pay with a ₹500 note. How much change do you get, in rupees?
23. 23.104 ÷ 4 =
24. 24.25% of ₹620 =
25. 25.What is the remainder when 69 is divided by 7?
26. 26.24 × 3 =
27. 27.36 × 8 =
28. 28.508 − 483 =
29. 29.39 + ? = 100
30. 30.317 − 285 =
31. 31.11 + 13 =
32. 32.Best estimate of 53 × 57? (a) 3000 (b) 30000 (c) 300
33. 33.74 laddoos are packed in boxes of 9. How many laddoos are left over?
34. 34.21 × 4 =
35. 35.Double 35 =
36. 36.63 − 46 =
37. 37.59 + 54 =
38. 38.You buy a storybook for ₹16 and pay with a ₹100 note. How much change do you get, in rupees?
39. 39.A film starts at 6:50 and ends at 7:30. How many minutes long is the film?
40. 40.You buy a box of crayons for ₹59 and pay with a ₹100 note. How much change do you get, in rupees?

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