Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 189 · 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. 1.19 + 21 =
2. 2.1001 − 987 =
3. 3.13 × 5 =
4. 4.1012 − 994 =
5. 5.72 − 16 =
6. 6.What is the remainder when 59 is divided by 7?
7. 7.480 + 99 =
8. 8.13 laddoos are packed in boxes of 3. How many laddoos are left over?
9. 9.77 + 85 =
10. 10.738 ÷ 9 =
11. 11.You start your homework at 6:35 and finish at 8:30. How many minutes did you work?
12. 12.You buy a water bottle for ₹79 and pay with a ₹100 note. How much change do you get, in rupees?
13. 13.21 × 4 =
14. 14.72 − 9 =
15. 15.25% of ₹530 =
16. 16.1 + ? = 10
17. 17.96 ÷ 8 =
18. 18.Double 82 =
19. 19.59 + ? = 100
20. 20.Best estimate of 16 × 56? (a) 12000 (b) 120 (c) 1200
21. 21.76 + 9 =
22. 22.70 + 9 =
23. 23.A film starts at 3:00 and ends at 5:25. How many minutes long is the film?
24. 24.21 + 41 =
25. 25.You start your homework at 3:05 and finish at 5:05. How many minutes did you work?
26. 26.56 × 4 =
27. 27.20 + 21 =
28. 28.72 − 19 =
29. 29.222 − 187 =
30. 30.17 + 7 =
31. 31.17 × 8 =
32. 32.334 + 99 =
33. 33.528 ÷ 6 =
34. 34.33 × 9 =
35. 35.71 × 3 =
36. 36.324 − 285 =
37. 37.11 + 10 =
38. 38.A film starts at 3:50 and ends at 4:35. How many minutes long is the film?
39. 39.48 × 4 =
40. 40.50% of ₹640 =

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