Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 962 · 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. 1.9 + ? = 10
2. 2.12 + 14 =
3. 3.88 + 7 =
4. 4.63 − 44 =
5. 5.200 + 99 =
6. 6.26 + 27 =
7. 7.A film starts at 7:40 and ends at 9:40. How many minutes long is the film?
8. 8.84 ÷ 7 =
9. 9.216 ÷ 8 =
10. 10.5% of ₹460 =
11. 11.A film starts at 1:50 and ends at 4:05. How many minutes long is the film?
12. 12.224 − 195 =
13. 13.300 ÷ 4 =
14. 14.A train leaves at 6:45 and reaches the next city at 7:20. How many minutes is the journey?
15. 15.84 × 3 =
16. 16.63 × 4 =
17. 17.40 × 8 =
18. 18.16² =
19. 19.77 laddoos are packed in boxes of 8. How many laddoos are left over?
20. 20.Double 56 =
21. 21.16 + 5 =
22. 22.Best estimate of 66 × 93? (a) 6300 (b) 630 (c) 63000
23. 23.What is the remainder when 57 is divided by 4?
24. 24.55 − 23 =
25. 25.Half of 38 =
26. 26.Double 27 =
27. 27.120 ÷ 4 =
28. 28.5 + ? = 10
29. 29.Double 91 =
30. 30.22² =
31. 31.60 − 25 =
32. 32.144 ÷ 8 =
33. 33.You buy a bag of mangoes for ₹491 and pay with a ₹500 note. How much change do you get, in rupees?
34. 34.You buy a bag of mangoes for ₹93 and pay with a ₹100 note. How much change do you get, in rupees?
35. 35.27² =
36. 36.2 + ? = 10
37. 37.17 × 4 =
38. 38.19 + 21 =
39. 39.207 − 188 =
40. 40.You buy a box of crayons for ₹36 and a pen for ₹28. You pay with a ₹100 note. How much change do you get, in rupees?

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