Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 984 · 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 − 9 =
2. 2.5 + 9 =
3. 3.57 ÷ 3 =
4. 4.25% of ₹530 =
5. 5.Double 75 =
6. 6.344 ÷ 4 =
7. 7.47 laddoos are packed in boxes of 3. How many laddoos are left over?
8. 8.67 × 4 =
9. 9.70 + 29 =
10. 10.69 − 57 =
11. 11.264 ÷ 8 =
12. 12.56 − 29 =
13. 13.301 − 289 =
14. 14.509 − 484 =
15. 15.28 + 8 =
16. 16.85 + 9 =
17. 17.59 × 8 =
18. 18.64 − 32 =
19. 19.94 − 22 =
20. 20.Half of 56 =
21. 21.35 laddoos are packed in boxes of 6. How many laddoos are left over?
22. 22.18 + 7 =
23. 23.106 − 67 =
24. 24.4 + ? = 10
25. 25.230 − 186 =
26. 26.87 + ? = 100
27. 27.27 children stand in rows of 5. How many full rows can they make?
28. 28.68 ÷ 4 =
29. 29.1015 − 994 =
30. 30.30 laddoos are packed in boxes of 4. How many laddoos are left over?
31. 31.336 ÷ 4 =
32. 32.Best estimate of 96 × 76? (a) 800 (b) 80000 (c) 8000
33. 33.30 × 8 =
34. 34.80 − 57 =
35. 35.Best estimate of 580 + 837? (a) 1400 (b) 1600 (c) 1200
36. 36.264 ÷ 6 =
37. 37.48 × 7 =
38. 38.Best estimate of 255 + 211? (a) 300 (b) 500 (c) 700
39. 39.309 − 278 =
40. 40.A train leaves at 1:45 and reaches the next city at 3:25. How many minutes is the journey?

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