Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 518 · 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. 1.7 + 6 =
2. 2.110 − 92 =
3. 3.You buy a notebook for ₹42 and a pen for ₹22. You pay with a ₹100 note. How much change do you get, in rupees?
4. 4.255 ÷ 5 =
5. 5.35 × 8 =
6. 6.504 − 483 =
7. 7.29 + 31 =
8. 8.82 + ? = 100
9. 9.59 + 3 =
10. 10.Half of 152 =
11. 11.46 + 29 =
12. 12.13 × 4 =
13. 13.16 − 9 =
14. 14.71 + 19 =
15. 15.Half of 198 =
16. 16.What is the remainder when 124 is divided by 8?
17. 17.Half of 138 =
18. 18.24 × 8 =
19. 19.28 + 7 =
20. 20.You buy a cricket ball for ₹18 and a pen for ₹41. You pay with a ₹100 note. How much change do you get, in rupees?
21. 21.19 + 6 =
22. 22.A train leaves at 8:10 and reaches the next city at 9:00. How many minutes is the journey?
23. 23.74 × 4 =
24. 24.22² =
25. 25.33 + 63 =
26. 26.A film starts at 8:50 and ends at 9:15. How many minutes long is the film?
27. 27.Best estimate of 36 × 33? (a) 12000 (b) 1200 (c) 120
28. 28.52 ÷ 4 =
29. 29.248 ÷ 8 =
30. 30.91 − 61 =
31. 31.You buy a kite for ₹15 and pay with a ₹100 note. How much change do you get, in rupees?
32. 32.16 × 4 =
33. 33.13 + 14 =
34. 34.73 − 49 =
35. 35.50% of ₹230 =
36. 36.11² =
37. 37.35 + 28 =
38. 38.50% of ₹50 =
39. 39.9 + 11 =
40. 40.45 + 31 =

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