Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 328 · 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. 1.94 laddoos are packed in boxes of 7. How many laddoos are left over?
2. 2.You buy a notebook for ₹31 and a pen for ₹18. You pay with a ₹100 note. How much change do you get, in rupees?
3. 3.330 ÷ 6 =
4. 4.128 ÷ 8 =
5. 5.28² =
6. 6.509 − 483 =
7. 7.13² =
8. 8.17 children stand in rows of 4. How many full rows can they make?
9. 9.552 ÷ 8 =
10. 10.109 − 29 =
11. 11.Half of 198 =
12. 12.26² =
13. 13.A film starts at 8:55 and ends at 9:25. How many minutes long is the film?
14. 14.15² =
15. 15.68 + 6 =
16. 16.You buy a box of crayons for ₹35 and a pen for ₹29. You pay with a ₹100 note. How much change do you get, in rupees?
17. 17.138 children stand in rows of 9. How many full rows can they make?
18. 18.6 + ? = 10
19. 19.Double 51 =
20. 20.648 ÷ 9 =
21. 21.Best estimate of 87 × 20? (a) 180 (b) 18000 (c) 1800
22. 22.15 + 14 =
23. 23.5% of ₹780 =
24. 24.156 ÷ 4 =
25. 25.60 − 51 =
26. 26.14 + 13 =
27. 27.22 children stand in rows of 3. How many full rows can they make?
28. 28.You buy a box of crayons for ₹208 and pay with a ₹500 note. How much change do you get, in rupees?
29. 29.27 − 9 =
30. 30.A train leaves at 2:25 and reaches the next city at 5:20. How many minutes is the journey?
31. 31.19 + ? = 100
32. 32.A film starts at 8:50 and ends at 11:25. How many minutes long is the film?
33. 33.66 + 81 =
34. 34.4 + ? = 10
35. 35.15 + 6 =
36. 36.23² =
37. 37.88 − 59 =
38. 38.22² =
39. 39.25% of ₹500 =
40. 40.Best estimate of 466 + 649? (a) 1300 (b) 1100 (c) 900

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