Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 465 · 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. 1.71 − 29 =
2. 2.25% of ₹230 =
3. 3.41 × 9 =
4. 4.78 − 44 =
5. 5.A film starts at 1:55 and ends at 3:45. How many minutes long is the film?
6. 6.Best estimate of 249 + 169? (a) 400 (b) 600 (c) 200
7. 7.54 − 19 =
8. 8.12² =
9. 9.73 + 26 =
10. 10.15 × 7 =
11. 11.13² =
12. 12.A train leaves at 4:35 and reaches the next city at 6:40. How many minutes is the journey?
13. 13.206 − 175 =
14. 14.97 children stand in rows of 8. How many full rows can they make?
15. 15.60 − 31 =
16. 16.49 × 4 =
17. 17.Best estimate of 804 + 672? (a) 1700 (b) 1500 (c) 1300
18. 18.A train leaves at 6:15 and reaches the next city at 6:50. How many minutes is the journey?
19. 19.243 ÷ 3 =
20. 20.36 + 51 =
21. 21.67 + 7 =
22. 22.10% of ₹630 =
23. 23.67 − 34 =
24. 24.Best estimate of 72 × 96? (a) 70000 (b) 7000 (c) 700
25. 25.You buy a bag of mangoes for ₹180 and pay with a ₹500 note. How much change do you get, in rupees?
26. 26.17 + 19 =
27. 27.11² =
28. 28.136 ÷ 8 =
29. 29.20 × 8 =
30. 30.45 + 74 =
31. 31.31 × 8 =
32. 32.10% of ₹210 =
33. 33.104 ÷ 8 =
34. 34.69 × 4 =
35. 35.67 + 29 =
36. 36.1012 − 979 =
37. 37.816 − 99 =
38. 38.16 × 8 =
39. 39.12 + 13 =
40. 40.Best estimate of 858 + 286? (a) 1400 (b) 1200 (c) 1000

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