Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 893 · 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.You buy a kite for ₹444 and pay with a ₹500 note. How much change do you get, in rupees?
2. 2.29² =
3. 3.729 ÷ 9 =
4. 4.You buy a notebook for ₹36 and a pen for ₹20. You pay with a ₹100 note. How much change do you get, in rupees?
5. 5.88 ÷ 4 =
6. 6.37 + 73 =
7. 7.50% of ₹380 =
8. 8.3 + ? = 10
9. 9.Half of 74 =
10. 10.10% of ₹290 =
11. 11.75 × 8 =
12. 12.64 + 29 =
13. 13.5% of ₹780 =
14. 14.You buy a notebook for ₹71 and pay with a ₹100 note. How much change do you get, in rupees?
15. 15.53 − 29 =
16. 16.1020 − 994 =
17. 17.Half of 136 =
18. 18.68 + 71 =
19. 19.22 + 21 =
20. 20.75 + 9 =
21. 21.A cricket match starts at 5:05 and the first innings ends at 6:20. How many minutes did the innings last?
22. 22.21² =
23. 23.Best estimate of 60 × 13? (a) 6000 (b) 60 (c) 600
24. 24.Best estimate of 53 × 49? (a) 25000 (b) 2500 (c) 250
25. 25.17 × 8 =
26. 26.206 − 185 =
27. 27.84 ÷ 4 =
28. 28.319 − 281 =
29. 29.55 + 29 =
30. 30.1 + ? = 10
31. 31.1003 − 994 =
32. 32.204 ÷ 4 =
33. 33.50% of ₹150 =
34. 34.46 × 4 =
35. 35.73 + ? = 100
36. 36.69 + 2 =
37. 37.99 − 29 =
38. 38.74 × 9 =
39. 39.43 + 43 =
40. 40.14² =

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