Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 951 · 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. 1.10% of ₹800 =
2. 2.18 + ? = 100
3. 3.A train leaves at 2:10 and reaches the next city at 3:50. How many minutes is the journey?
4. 4.A train leaves at 3:25 and reaches the next city at 4:30. How many minutes is the journey?
5. 5.48 + 7 =
6. 6.713 − 99 =
7. 7.You buy a storybook for ₹93 and pay with a ₹100 note. How much change do you get, in rupees?
8. 8.Double 98 =
9. 9.84 − 21 =
10. 10.Best estimate of 86 × 60? (a) 540 (b) 5400 (c) 54000
11. 11.9 + ? = 10
12. 12.Best estimate of 167 + 325? (a) 300 (b) 500 (c) 700
13. 13.47 + 79 =
14. 14.243 ÷ 3 =
15. 15.48 + 19 =
16. 16.85 × 3 =
17. 17.13 + 14 =
18. 18.72 + ? = 100
19. 19.What is the remainder when 68 is divided by 5?
20. 20.5% of ₹880 =
21. 21.46 × 7 =
22. 22.A film starts at 3:35 and ends at 4:45. How many minutes long is the film?
23. 23.A film starts at 8:35 and ends at 11:55. How many minutes long is the film?
24. 24.90 − 19 =
25. 25.54 + 88 =
26. 26.13 + ? = 100
27. 27.9 + 10 =
28. 28.155 ÷ 5 =
29. 29.You start your homework at 2:00 and finish at 4:40. How many minutes did you work?
30. 30.49 + 16 =
31. 31.88 ÷ 8 =
32. 32.71 × 4 =
33. 33.86 + 7 =
34. 34.50% of ₹380 =
35. 35.59 − 21 =
36. 36.83 − 16 =
37. 37.You start your homework at 5:45 and finish at 7:05. How many minutes did you work?
38. 38.85 + 7 =
39. 39.40 + ? = 100
40. 40.38 + 3 =

Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths