Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 988 · 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. 1.56 children stand in rows of 6. How many full rows can they make?
2. 2.Double 79 =
3. 3.61 − 36 =
4. 4.35 + ? = 100
5. 5.Double 51 =
6. 6.10 + 11 =
7. 7.232 ÷ 8 =
8. 8.67 + 4 =
9. 9.5% of ₹730 =
10. 10.Best estimate of 32 × 43? (a) 1200 (b) 12000 (c) 120
11. 11.32 + 69 =
12. 12.18² =
13. 13.You buy a water bottle for ₹45 and a pen for ₹34. You pay with a ₹100 note. How much change do you get, in rupees?
14. 14.114 − 82 =
15. 15.180 ÷ 5 =
16. 16.37 + 6 =
17. 17.76 − 41 =
18. 18.28² =
19. 19.70 − 41 =
20. 20.189 ÷ 9 =
21. 21.You buy a water bottle for ₹12 and a pen for ₹38. You pay with a ₹100 note. How much change do you get, in rupees?
22. 22.7 + 9 =
23. 23.Half of 74 =
24. 24.93 − 71 =
25. 25.78 − 38 =
26. 26.57 + 87 =
27. 27.268 ÷ 4 =
28. 28.Double 57 =
29. 29.Best estimate of 24 × 28? (a) 600 (b) 6000 (c) 60
30. 30.50% of ₹260 =
31. 31.87 + 8 =
32. 32.76 ÷ 4 =
33. 33.14 × 8 =
34. 34.51 × 3 =
35. 35.You buy a pencil box for ₹137 and pay with a ₹500 note. How much change do you get, in rupees?
36. 36.50 children stand in rows of 7. How many full rows can they make?
37. 37.58 + 9 =
38. 38.29² =
39. 39.14 + 13 =
40. 40.79 − 39 =

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