Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 527 · 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.You buy a box of crayons for ₹22 and a pen for ₹20. You pay with a ₹100 note. How much change do you get, in rupees?
2. 2.81 + 12 =
3. 3.13 + 12 =
4. 4.60 + 85 =
5. 5.548 − 99 =
6. 6.6 + 8 =
7. 7.2 + ? = 10
8. 8.72 × 4 =
9. 9.249 ÷ 3 =
10. 10.Half of 98 =
11. 11.You buy a cricket ball for ₹61 and pay with a ₹100 note. How much change do you get, in rupees?
12. 12.63 + 71 =
13. 13.94 × 9 =
14. 14.232 ÷ 8 =
15. 15.Best estimate of 123 + 326? (a) 200 (b) 400 (c) 600
16. 16.77 + 8 =
17. 17.A film starts at 2:55 and ends at 6:15. How many minutes long is the film?
18. 18.24 × 4 =
19. 19.44 laddoos are packed in boxes of 5. How many laddoos are left over?
20. 20.266 ÷ 7 =
21. 21.23 + 44 =
22. 22.You buy a kite for ₹485 and pay with a ₹500 note. How much change do you get, in rupees?
23. 23.42 + ? = 100
24. 24.98 − 81 =
25. 25.18 × 4 =
26. 26.196 ÷ 4 =
27. 27.18 − 9 =
28. 28.316 − 281 =
29. 29.97 − 21 =
30. 30.What is the remainder when 85 is divided by 9?
31. 31.89 children stand in rows of 6. How many full rows can they make?
32. 32.30 + 29 =
33. 33.13 × 4 =
34. 34.You buy a cricket ball for ₹39 and a pen for ₹13. You pay with a ₹100 note. How much change do you get, in rupees?
35. 35.Best estimate of 23 × 91? (a) 1800 (b) 18000 (c) 180
36. 36.25 + 26 =
37. 37.57 + 5 =
38. 38.A film starts at 5:30 and ends at 7:30. How many minutes long is the film?
39. 39.41 + 9 =
40. 40.73 + 73 =

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