Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 338 · 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. 1.55 + 14 =
2. 2.44 − 19 =
3. 3.85 children stand in rows of 7. How many full rows can they make?
4. 4.6 + 6 =
5. 5.42 + 29 =
6. 6.31 × 7 =
7. 7.47 laddoos are packed in boxes of 5. How many laddoos are left over?
8. 8.33 + 19 =
9. 9.28 + 29 =
10. 10.72 − 9 =
11. 11.74 − 37 =
12. 12.47 + 33 =
13. 13.You buy a notebook for ₹328 and pay with a ₹500 note. How much change do you get, in rupees?
14. 14.What is the remainder when 58 is divided by 5?
15. 15.309 − 283 =
16. 16.21² =
17. 17.272 ÷ 8 =
18. 18.What is the remainder when 33 is divided by 4?
19. 19.Half of 180 =
20. 20.27² =
21. 21.88 × 5 =
22. 22.Double 49 =
23. 23.56 ÷ 4 =
24. 24.You start your homework at 1:50 and finish at 4:20. How many minutes did you work?
25. 25.136 ÷ 8 =
26. 26.320 − 292 =
27. 27.You start your homework at 2:20 and finish at 2:45. How many minutes did you work?
28. 28.34 × 7 =
29. 29.31 × 8 =
30. 30.8 + 7 =
31. 31.A cricket match starts at 1:20 and the first innings ends at 2:25. How many minutes did the innings last?
32. 32.29 × 6 =
33. 33.You buy a storybook for ₹43 and pay with a ₹100 note. How much change do you get, in rupees?
34. 34.5% of ₹870 =
35. 35.Half of 120 =
36. 36.507 − 497 =
37. 37.78 + 43 =
38. 38.16 + 9 =
39. 39.47 + 9 =
40. 40.62 children stand in rows of 9. How many full rows can they make?

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