Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 229 · 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. 1.125 − 97 =
2. 2.74 − 33 =
3. 3.12² =
4. 4.212 ÷ 4 =
5. 5.47 + 5 =
6. 6.You buy a kite for ₹187 and pay with a ₹500 note. How much change do you get, in rupees?
7. 7.68 − 29 =
8. 8.121 − 94 =
9. 9.23² =
10. 10.1 + ? = 10
11. 11.38 × 3 =
12. 12.22 × 4 =
13. 13.You buy a bag of mangoes for ₹298 and pay with a ₹500 note. How much change do you get, in rupees?
14. 14.5% of ₹540 =
15. 15.13 laddoos are packed in boxes of 3. How many laddoos are left over?
16. 16.Double 28 =
17. 17.215 ÷ 5 =
18. 18.51 + ? = 100
19. 19.244 ÷ 4 =
20. 20.60 + 19 =
21. 21.1009 − 995 =
22. 22.You buy a pencil box for ₹36 and pay with a ₹100 note. How much change do you get, in rupees?
23. 23.1011 − 982 =
24. 24.3 + ? = 10
25. 25.23 + 72 =
26. 26.29 + 31 =
27. 27.You buy a kite for ₹73 and pay with a ₹100 note. How much change do you get, in rupees?
28. 28.19 + 20 =
29. 29.31 × 5 =
30. 30.50% of ₹770 =
31. 31.Double 81 =
32. 32.18 + 19 =
33. 33.15 + 16 =
34. 34.855 ÷ 9 =
35. 35.A film starts at 4:05 and ends at 7:10. How many minutes long is the film?
36. 36.17 × 8 =
37. 37.82 × 3 =
38. 38.69 − 31 =
39. 39.59 − 29 =
40. 40.60 − 48 =

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