Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 215 · 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. 1.16 + 9 =
2. 2.1011 − 996 =
3. 3.You start your homework at 7:45 and finish at 8:15. How many minutes did you work?
4. 4.18 + 20 =
5. 5.You buy a cricket ball for ₹392 and pay with a ₹500 note. How much change do you get, in rupees?
6. 6.You buy a kite for ₹43 and pay with a ₹100 note. How much change do you get, in rupees?
7. 7.27² =
8. 8.25% of ₹720 =
9. 9.432 ÷ 8 =
10. 10.160 ÷ 4 =
11. 11.17 × 6 =
12. 12.A film starts at 8:30 and ends at 9:15. How many minutes long is the film?
13. 13.120 ÷ 8 =
14. 14.22 × 8 =
15. 15.99 × 7 =
16. 16.6 + ? = 10
17. 17.6 + 7 =
18. 18.42 + ? = 100
19. 19.Double 63 =
20. 20.45 + 6 =
21. 21.112 − 81 =
22. 22.Half of 58 =
23. 23.476 − 99 =
24. 24.12² =
25. 25.75 + 9 =
26. 26.80 − 24 =
27. 27.100 − 67 =
28. 28.312 − 290 =
29. 29.1 + ? = 10
30. 30.25 + 27 =
31. 31.92 × 6 =
32. 32.238 ÷ 7 =
33. 33.63 × 9 =
34. 34.13² =
35. 35.Best estimate of 149 + 749? (a) 1000 (b) 800 (c) 600
36. 36.55 + 6 =
37. 37.You buy a bag of mangoes for ₹242 and pay with a ₹500 note. How much change do you get, in rupees?
38. 38.14² =
39. 39.A cricket match starts at 6:15 and the first innings ends at 8:00. How many minutes did the innings last?
40. 40.112 ÷ 7 =

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