Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 946 · 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. 1.109 − 56 =
2. 2.57 + 9 =
3. 3.26 × 8 =
4. 4.25% of ₹800 =
5. 5.You buy a pencil box for ₹464 and pay with a ₹500 note. How much change do you get, in rupees?
6. 6.120 ÷ 8 =
7. 7.25 + 26 =
8. 8.12² =
9. 9.22² =
10. 10.502 − 493 =
11. 11.Double 23 =
12. 12.328 − 277 =
13. 13.50% of ₹60 =
14. 14.33 + ? = 100
15. 15.What is the remainder when 30 is divided by 4?
16. 16.25 × 4 =
17. 17.103 − 92 =
18. 18.39 + ? = 100
19. 19.A film starts at 4:55 and ends at 5:35. How many minutes long is the film?
20. 20.27 × 4 =
21. 21.66 + 6 =
22. 22.72 − 9 =
23. 23.4 + ? = 10
24. 24.65 − 44 =
25. 25.You buy a water bottle for ₹88 and pay with a ₹100 note. How much change do you get, in rupees?
26. 26.317 − 281 =
27. 27.89 + 2 =
28. 28.59 × 9 =
29. 29.What is the remainder when 38 is divided by 7?
30. 30.224 ÷ 8 =
31. 31.6 + 7 =
32. 32.21 × 7 =
33. 33.You start your homework at 3:10 and finish at 3:55. How many minutes did you work?
34. 34.93 − 19 =
35. 35.12 + ? = 100
36. 36.24² =
37. 37.92 − 48 =
38. 38.52 laddoos are packed in boxes of 8. How many laddoos are left over?
39. 39.25% of ₹840 =
40. 40.You buy a box of crayons for ₹36 and a pen for ₹17. You pay with a ₹100 note. How much change do you get, in rupees?

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