Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 768 · 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.Best estimate of 69 × 76? (a) 560 (b) 5600 (c) 56000
2. 2.A cricket match starts at 3:30 and the first innings ends at 4:15. How many minutes did the innings last?
3. 3.6 + 8 =
4. 4.330 − 278 =
5. 5.23² =
6. 6.136 ÷ 4 =
7. 7.5 + ? = 10
8. 8.What is the remainder when 31 is divided by 7?
9. 9.You buy a water bottle for ₹33 and pay with a ₹100 note. How much change do you get, in rupees?
10. 10.1009 − 979 =
11. 11.34 + 82 =
12. 12.A cricket match starts at 2:35 and the first innings ends at 5:00. How many minutes did the innings last?
13. 13.97 − 31 =
14. 14.You buy a cricket ball for ₹93 and pay with a ₹100 note. How much change do you get, in rupees?
15. 15.176 ÷ 4 =
16. 16.25% of ₹450 =
17. 17.664 ÷ 8 =
18. 18.72 ÷ 4 =
19. 19.29² =
20. 20.19² =
21. 21.71 + ? = 100
22. 22.69 − 38 =
23. 23.600 ÷ 8 =
24. 24.You buy a storybook for ₹178 and pay with a ₹500 note. How much change do you get, in rupees?
25. 25.You buy a bag of mangoes for ₹55 and pay with a ₹100 note. How much change do you get, in rupees?
26. 26.87 − 9 =
27. 27.29 + 28 =
28. 28.55 + 69 =
29. 29.25% of ₹40 =
30. 30.24 + 25 =
31. 31.17 + 8 =
32. 32.61 − 19 =
33. 33.5% of ₹180 =
34. 34.111 − 87 =
35. 35.What is the remainder when 93 is divided by 9?
36. 36.You buy a kite for ₹96 and pay with a ₹100 note. How much change do you get, in rupees?
37. 37.Best estimate of 48 × 56? (a) 30000 (b) 3000 (c) 300
38. 38.107 − 72 =
39. 39.208 ÷ 4 =
40. 40.92 × 4 =

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