Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 114 · 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.Half of 42 =
2. 2.27 + 26 =
3. 3.128 ÷ 4 =
4. 4.58 + 28 =
5. 5.256 ÷ 4 =
6. 6.523 − 496 =
7. 7.36 × 4 =
8. 8.You buy a bag of mangoes for ₹86 and pay with a ₹100 note. How much change do you get, in rupees?
9. 9.26 + 28 =
10. 10.94 laddoos are packed in boxes of 8. How many laddoos are left over?
11. 11.88 − 57 =
12. 12.1 + ? = 10
13. 13.21 − 9 =
14. 14.You buy a kite for ₹37 and a pen for ₹38. You pay with a ₹100 note. How much change do you get, in rupees?
15. 15.17² =
16. 16.What is the remainder when 80 is divided by 7?
17. 17.78 + 7 =
18. 18.196 ÷ 4 =
19. 19.1015 − 986 =
20. 20.23² =
21. 21.17 + 9 =
22. 22.13 + 12 =
23. 23.16² =
24. 24.64 − 26 =
25. 25.70 − 48 =
26. 26.You buy a bag of mangoes for ₹190 and pay with a ₹500 note. How much change do you get, in rupees?
27. 27.Best estimate of 516 + 215? (a) 900 (b) 500 (c) 700
28. 28.You buy a box of crayons for ₹495 and pay with a ₹500 note. How much change do you get, in rupees?
29. 29.71 × 5 =
30. 30.Best estimate of 34 × 96? (a) 300 (b) 3000 (c) 30000
31. 31.25 + 44 =
32. 32.73 × 4 =
33. 33.89 − 44 =
34. 34.77 − 17 =
35. 35.A train leaves at 4:10 and reaches the next city at 5:10. How many minutes is the journey?
36. 36.217 − 198 =
37. 37.59 − 33 =
38. 38.22² =
39. 39.82 − 66 =
40. 40.A film starts at 1:30 and ends at 3:30. How many minutes long is the film?

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