Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 821 · 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. 1.45 − 29 =
2. 2.93 − 14 =
3. 3.18 + 4 =
4. 4.79 + ? = 100
5. 5.82 + ? = 100
6. 6.9 + 10 =
7. 7.Half of 58 =
8. 8.You buy a kite for ₹28 and a pen for ₹16. You pay with a ₹100 note. How much change do you get, in rupees?
9. 9.12 + 13 =
10. 10.A cricket match starts at 6:05 and the first innings ends at 8:35. How many minutes did the innings last?
11. 11.558 ÷ 9 =
12. 12.46 × 4 =
13. 13.A film starts at 4:35 and ends at 6:40. How many minutes long is the film?
14. 14.89 − 33 =
15. 15.5 + 6 =
16. 16.212 ÷ 4 =
17. 17.880 − 99 =
18. 18.Double 53 =
19. 19.11 + 13 =
20. 20.You start your homework at 5:40 and finish at 8:05. How many minutes did you work?
21. 21.21² =
22. 22.89 + 7 =
23. 23.16 + 8 =
24. 24.49 + 2 =
25. 25.You buy a storybook for ₹96 and pay with a ₹100 note. How much change do you get, in rupees?
26. 26.17 − 9 =
27. 27.8 + 10 =
28. 28.36 × 4 =
29. 29.Best estimate of 660 + 492? (a) 1400 (b) 1200 (c) 1000
30. 30.17² =
31. 31.22 + 24 =
32. 32.93 − 69 =
33. 33.25% of ₹260 =
34. 34.7 + 8 =
35. 35.Best estimate of 515 + 827? (a) 1500 (b) 1100 (c) 1300
36. 36.504 ÷ 7 =
37. 37.47 laddoos are packed in boxes of 3. How many laddoos are left over?
38. 38.65 × 5 =
39. 39.You start your homework at 7:35 and finish at 8:30. How many minutes did you work?
40. 40.You buy a cricket ball for ₹441 and pay with a ₹500 note. How much change do you get, in rupees?

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