Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 542 · 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. 1.501 − 496 =
2. 2.5 + ? = 10
3. 3.20 + 21 =
4. 4.You buy a notebook for ₹41 and a pen for ₹20. You pay with a ₹100 note. How much change do you get, in rupees?
5. 5.53 laddoos are packed in boxes of 4. How many laddoos are left over?
6. 6.What is the remainder when 25 is divided by 4?
7. 7.87 − 74 =
8. 8.Best estimate of 31 × 19? (a) 600 (b) 6000 (c) 60
9. 9.You buy a cricket ball for ₹63 and pay with a ₹100 note. How much change do you get, in rupees?
10. 10.Best estimate of 33 × 21? (a) 60 (b) 6000 (c) 600
11. 11.44 laddoos are packed in boxes of 3. How many laddoos are left over?
12. 12.88 ÷ 4 =
13. 13.46 + 19 =
14. 14.100 ÷ 4 =
15. 15.55 + 7 =
16. 16.63 − 14 =
17. 17.104 ÷ 4 =
18. 18.63 × 7 =
19. 19.34 − 19 =
20. 20.18 × 9 =
21. 21.152 ÷ 4 =
22. 22.24 + 29 =
23. 23.23 + 32 =
24. 24.62 × 4 =
25. 25.54 + 27 =
26. 26.114 − 90 =
27. 27.A film starts at 8:40 and ends at 10:05. How many minutes long is the film?
28. 28.99 children stand in rows of 7. How many full rows can they make?
29. 29.A film starts at 5:25 and ends at 6:50. How many minutes long is the film?
30. 30.672 ÷ 8 =
31. 31.208 ÷ 8 =
32. 32.29² =
33. 33.69 children stand in rows of 7. How many full rows can they make?
34. 34.6 + 6 =
35. 35.72 + ? = 100
36. 36.1003 − 982 =
37. 37.43 + ? = 100
38. 38.24 × 8 =
39. 39.Half of 152 =
40. 40.81 + 19 =

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