Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 895 · 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 box of crayons for ₹262 and pay with a ₹500 note. How much change do you get, in rupees?
2. 2.81 + 29 =
3. 3.29 + 75 =
4. 4.5% of ₹530 =
5. 5.41 + ? = 100
6. 6.A train leaves at 1:50 and reaches the next city at 2:30. How many minutes is the journey?
7. 7.396 ÷ 4 =
8. 8.20 + 21 =
9. 9.7 + 9 =
10. 10.59 − 15 =
11. 11.152 ÷ 8 =
12. 12.7 + 6 =
13. 13.31 + 13 =
14. 14.18² =
15. 15.288 ÷ 8 =
16. 16.48 × 4 =
17. 17.57 − 9 =
18. 18.71 + ? = 100
19. 19.83 − 22 =
20. 20.A cricket match starts at 5:35 and the first innings ends at 7:35. How many minutes did the innings last?
21. 21.28 + 3 =
22. 22.15 + 6 =
23. 23.130 − 75 =
24. 24.639 ÷ 9 =
25. 25.A film starts at 4:40 and ends at 5:50. How many minutes long is the film?
26. 26.740 − 99 =
27. 27.What is the remainder when 63 is divided by 5?
28. 28.67 − 47 =
29. 29.Best estimate of 716 + 779? (a) 1300 (b) 1700 (c) 1500
30. 30.36 × 4 =
31. 31.25 + 26 =
32. 32.7 + 7 =
33. 33.You buy a bag of mangoes for ₹90 and pay with a ₹100 note. How much change do you get, in rupees?
34. 34.23 × 7 =
35. 35.21 + 23 =
36. 36.366 ÷ 6 =
37. 37.69 × 4 =
38. 38.23 + 17 =
39. 39.148 ÷ 4 =
40. 40.You start your homework at 4:40 and finish at 5:40. How many minutes did you work?

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