Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 386 · 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. 1.507 − 476 =
2. 2.82 − 67 =
3. 3.You buy a storybook for ₹23 and pay with a ₹100 note. How much change do you get, in rupees?
4. 4.320 ÷ 8 =
5. 5.104 − 91 =
6. 6.7 + 8 =
7. 7.1 + ? = 10
8. 8.99 × 3 =
9. 9.296 ÷ 8 =
10. 10.You start your homework at 4:40 and finish at 7:50. How many minutes did you work?
11. 11.29 × 8 =
12. 12.Double 54 =
13. 13.Double 71 =
14. 14.56 + 29 =
15. 15.A film starts at 4:55 and ends at 8:00. How many minutes long is the film?
16. 16.94 × 7 =
17. 17.104 ÷ 4 =
18. 18.You buy a notebook for ₹44 and a pen for ₹27. You pay with a ₹100 note. How much change do you get, in rupees?
19. 19.59 + 9 =
20. 20.36 × 8 =
21. 21.25% of ₹840 =
22. 22.32 + 29 =
23. 23.46 + 29 =
24. 24.372 ÷ 4 =
25. 25.81 × 6 =
26. 26.12² =
27. 27.91 × 6 =
28. 28.3 + ? = 10
29. 29.You buy a bag of mangoes for ₹15 and a pen for ₹21. You pay with a ₹100 note. How much change do you get, in rupees?
30. 30.60 − 19 =
31. 31.360 ÷ 8 =
32. 32.144 ÷ 8 =
33. 33.128 − 93 =
34. 34.34 children stand in rows of 4. How many full rows can they make?
35. 35.130 laddoos are packed in boxes of 9. How many laddoos are left over?
36. 36.Best estimate of 319 + 298? (a) 600 (b) 400 (c) 800
37. 37.You buy a bag of mangoes for ₹42 and a pen for ₹24. You pay with a ₹100 note. How much change do you get, in rupees?
38. 38.You buy a pencil box for ₹30 and a pen for ₹12. You pay with a ₹100 note. How much change do you get, in rupees?
39. 39.321 − 282 =
40. 40.58 − 9 =

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