Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 342 · 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. 1.32 + ? = 100
2. 2.29 − 19 =
3. 3.5 + ? = 10
4. 4.65 + 9 =
5. 5.Best estimate of 358 + 614? (a) 1000 (b) 800 (c) 1200
6. 6.What is the remainder when 65 is divided by 9?
7. 7.14 × 9 =
8. 8.18 + 17 =
9. 9.39 laddoos are packed in boxes of 5. How many laddoos are left over?
10. 10.Double 71 =
11. 11.512 − 487 =
12. 12.A train leaves at 7:35 and reaches the next city at 8:10. How many minutes is the journey?
13. 13.68 × 3 =
14. 14.46 − 29 =
15. 15.68 ÷ 4 =
16. 16.97 − 77 =
17. 17.25 × 8 =
18. 18.136 ÷ 8 =
19. 19.A train leaves at 1:25 and reaches the next city at 2:55. How many minutes is the journey?
20. 20.36 + 7 =
21. 21.294 ÷ 6 =
22. 22.51 laddoos are packed in boxes of 5. How many laddoos are left over?
23. 23.240 ÷ 4 =
24. 24.34 children stand in rows of 3. How many full rows can they make?
25. 25.6 + 8 =
26. 26.Double 68 =
27. 27.308 − 293 =
28. 28.Double 49 =
29. 29.14² =
30. 30.95 × 7 =
31. 31.248 ÷ 8 =
32. 32.23² =
33. 33.Best estimate of 77 × 26? (a) 240 (b) 2400 (c) 24000
34. 34.42 children stand in rows of 5. How many full rows can they make?
35. 35.61 − 43 =
36. 36.89 × 3 =
37. 37.56 ÷ 4 =
38. 38.7 + 4 =
39. 39.40 × 8 =
40. 40.28 × 8 =

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