Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 739 · 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. 1.38 children stand in rows of 4. How many full rows can they make?
2. 2.53 children stand in rows of 9. How many full rows can they make?
3. 3.208 ÷ 8 =
4. 4.371 ÷ 7 =
5. 5.34 × 4 =
6. 6.Best estimate of 57 × 18? (a) 12000 (b) 1200 (c) 120
7. 7.You start your homework at 3:15 and finish at 4:00. How many minutes did you work?
8. 8.What is the remainder when 26 is divided by 5?
9. 9.36 × 8 =
10. 10.85 − 23 =
11. 11.47 × 4 =
12. 12.25 + ? = 100
13. 13.504 ÷ 7 =
14. 14.85 − 67 =
15. 15.245 ÷ 5 =
16. 16.73 × 4 =
17. 17.Best estimate of 419 + 411? (a) 1000 (b) 800 (c) 600
18. 18.37 + 28 =
19. 19.48 × 5 =
20. 20.326 − 284 =
21. 21.69 − 19 =
22. 22.56 + 7 =
23. 23.43 × 4 =
24. 24.A film starts at 1:00 and ends at 2:20. How many minutes long is the film?
25. 25.62 × 7 =
26. 26.93 − 57 =
27. 27.14 × 8 =
28. 28.60 ÷ 4 =
29. 29.14² =
30. 30.You buy a box of crayons for ₹422 and pay with a ₹500 note. How much change do you get, in rupees?
31. 31.Half of 124 =
32. 32.10% of ₹690 =
33. 33.7 + ? = 10
34. 34.69 + 29 =
35. 35.52 laddoos are packed in boxes of 6. How many laddoos are left over?
36. 36.Half of 58 =
37. 37.61 × 4 =
38. 38.23 + 24 =
39. 39.123 ÷ 3 =
40. 40.36 + 19 =

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