Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 53 · 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. 1.21 + 23 =
2. 2.523 − 482 =
3. 3.26 + 28 =
4. 4.693 ÷ 7 =
5. 5.38 × 4 =
6. 6.Half of 168 =
7. 7.87 − 56 =
8. 8.10 + 12 =
9. 9.A train leaves at 3:50 and reaches the next city at 6:50. How many minutes is the journey?
10. 10.27² =
11. 11.21 + 33 =
12. 12.517 − 485 =
13. 13.79 − 25 =
14. 14.A train leaves at 7:50 and reaches the next city at 9:30. How many minutes is the journey?
15. 15.52 × 4 =
16. 16.Double 96 =
17. 17.77 children stand in rows of 5. How many full rows can they make?
18. 18.Double 93 =
19. 19.Half of 80 =
20. 20.63 − 52 =
21. 21.28 − 19 =
22. 22.4 + ? = 10
23. 23.84 ÷ 4 =
24. 24.421 + 99 =
25. 25.Best estimate of 816 + 847? (a) 1400 (b) 1800 (c) 1600
26. 26.158 + 99 =
27. 27.7 + 9 =
28. 28.78 + 9 =
29. 29.23 + 25 =
30. 30.What is the remainder when 64 is divided by 9?
31. 31.448 + 99 =
32. 32.You buy a notebook for ₹43 and a pen for ₹17. You pay with a ₹100 note. How much change do you get, in rupees?
33. 33.523 − 493 =
34. 34.12 + 14 =
35. 35.5% of ₹120 =
36. 36.216 ÷ 3 =
37. 37.31 × 8 =
38. 38.116 − 76 =
39. 39.What is the remainder when 34 is divided by 4?
40. 40.88 ÷ 4 =

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