Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 389 · 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.A train leaves at 3:30 and reaches the next city at 6:45. How many minutes is the journey?
2. 2.46 × 4 =
3. 3.36 × 8 =
4. 4.Half of 150 =
5. 5.16 × 8 =
6. 6.You start your homework at 2:00 and finish at 3:45. How many minutes did you work?
7. 7.8 + ? = 10
8. 8.89 + 27 =
9. 9.75 + 56 =
10. 10.41 + 79 =
11. 11.23² =
12. 12.10% of ₹380 =
13. 13.3 + ? = 10
14. 14.96 ÷ 4 =
15. 15.100 − 56 =
16. 16.What is the remainder when 40 is divided by 3?
17. 17.17 + 8 =
18. 18.Best estimate of 703 + 135? (a) 800 (b) 600 (c) 1000
19. 19.83 − 66 =
20. 20.Double 44 =
21. 21.73 children stand in rows of 7. How many full rows can they make?
22. 22.A train leaves at 2:50 and reaches the next city at 4:40. How many minutes is the journey?
23. 23.612 ÷ 9 =
24. 24.15 + ? = 100
25. 25.80 laddoos are packed in boxes of 7. How many laddoos are left over?
26. 26.You buy a notebook for ₹41 and a pen for ₹40. You pay with a ₹100 note. How much change do you get, in rupees?
27. 27.427 ÷ 7 =
28. 28.55 + 42 =
29. 29.9 + 10 =
30. 30.200 ÷ 8 =
31. 31.497 + 99 =
32. 32.You buy a cricket ball for ₹71 and pay with a ₹100 note. How much change do you get, in rupees?
33. 33.A train leaves at 3:40 and reaches the next city at 6:40. How many minutes is the journey?
34. 34.16 × 4 =
35. 35.A cricket match starts at 7:35 and the first innings ends at 9:35. How many minutes did the innings last?
36. 36.7 + 6 =
37. 37.28 − 19 =
38. 38.You buy a storybook for ₹51 and pay with a ₹100 note. How much change do you get, in rupees?
39. 39.44 + ? = 100
40. 40.89 + 31 =

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