Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 897 · 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. 1.74 − 27 =
2. 2.You buy a storybook for ₹359 and pay with a ₹500 note. How much change do you get, in rupees?
3. 3.5% of ₹230 =
4. 4.34 × 8 =
5. 5.A film starts at 1:35 and ends at 2:40. How many minutes long is the film?
6. 6.3 + ? = 10
7. 7.124 ÷ 4 =
8. 8.330 − 284 =
9. 9.Double 22 =
10. 10.558 ÷ 6 =
11. 11.62 − 19 =
12. 12.92 − 75 =
13. 13.Double 29 =
14. 14.35 + 7 =
15. 15.5% of ₹430 =
16. 16.A cricket match starts at 4:00 and the first innings ends at 5:05. How many minutes did the innings last?
17. 17.82 − 51 =
18. 18.240 ÷ 4 =
19. 19.13² =
20. 20.29 + 8 =
21. 21.18 × 5 =
22. 22.78 + 3 =
23. 23.27² =
24. 24.75 + 34 =
25. 25.99 − 71 =
26. 26.91 − 29 =
27. 27.84 × 8 =
28. 28.63 + ? = 100
29. 29.78 − 35 =
30. 30.26² =
31. 31.Best estimate of 77 × 78? (a) 64000 (b) 640 (c) 6400
32. 32.Half of 194 =
33. 33.27 + 9 =
34. 34.50% of ₹220 =
35. 35.88 + 4 =
36. 36.185 ÷ 5 =
37. 37.21² =
38. 38.What is the remainder when 62 is divided by 5?
39. 39.126 children stand in rows of 8. How many full rows can they make?
40. 40.You buy a water bottle for ₹11 and a pen for ₹36. You pay with a ₹100 note. How much change do you get, in rupees?

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