Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 265 · 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.Best estimate of 32 × 24? (a) 600 (b) 6000 (c) 60
2. 2.19² =
3. 3.111 laddoos are packed in boxes of 7. How many laddoos are left over?
4. 4.76 + 9 =
5. 5.Best estimate of 68 × 16? (a) 1400 (b) 140 (c) 14000
6. 6.50% of ₹60 =
7. 7.89 + 2 =
8. 8.9 + 10 =
9. 9.56 × 5 =
10. 10.19 + 4 =
11. 11.315 ÷ 5 =
12. 12.50 laddoos are packed in boxes of 7. How many laddoos are left over?
13. 13.37 × 9 =
14. 14.19 + 5 =
15. 15.Double 25 =
16. 16.A film starts at 5:20 and ends at 5:45. How many minutes long is the film?
17. 17.A cricket match starts at 2:15 and the first innings ends at 3:00. How many minutes did the innings last?
18. 18.59 × 4 =
19. 19.170 ÷ 5 =
20. 20.88 − 37 =
21. 21.18 × 8 =
22. 22.77 + 5 =
23. 23.26² =
24. 24.Double 95 =
25. 25.26 × 8 =
26. 26.25% of ₹710 =
27. 27.A film starts at 7:40 and ends at 10:20. How many minutes long is the film?
28. 28.Best estimate of 50 × 98? (a) 5000 (b) 500 (c) 50000
29. 29.You buy a box of crayons for ₹63 and pay with a ₹100 note. How much change do you get, in rupees?
30. 30.63 × 6 =
31. 31.Best estimate of 531 + 731? (a) 1000 (b) 1400 (c) 1200
32. 32.210 − 178 =
33. 33.34 + ? = 100
34. 34.Best estimate of 612 + 607? (a) 1400 (b) 1200 (c) 1000
35. 35.A film starts at 2:40 and ends at 3:45. How many minutes long is the film?
36. 36.Best estimate of 453 + 289? (a) 800 (b) 600 (c) 1000
37. 37.16 × 4 =
38. 38.10% of ₹120 =
39. 39.54 + 58 =
40. 40.You buy a box of crayons for ₹14 and a pen for ₹28. You pay with a ₹100 note. How much change do you get, in rupees?

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