Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 23 · 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. 1.16 + 7 =
2. 2.Best estimate of 74 × 54? (a) 3500 (b) 350 (c) 35000
3. 3.71 laddoos are packed in boxes of 5. How many laddoos are left over?
4. 4.38 children stand in rows of 7. How many full rows can they make?
5. 5.188 ÷ 4 =
6. 6.65 × 4 =
7. 7.Half of 176 =
8. 8.68 − 32 =
9. 9.A film starts at 2:15 and ends at 3:55. How many minutes long is the film?
10. 10.You buy a cricket ball for ₹42 and a pen for ₹37. You pay with a ₹100 note. How much change do you get, in rupees?
11. 11.23 × 8 =
12. 12.19² =
13. 13.4 + ? = 10
14. 14.16 + 5 =
15. 15.You buy a box of crayons for ₹481 and pay with a ₹500 note. How much change do you get, in rupees?
16. 16.32 + 18 =
17. 17.71 − 27 =
18. 18.46 × 4 =
19. 19.11² =
20. 20.40 laddoos are packed in boxes of 6. How many laddoos are left over?
21. 21.You buy a water bottle for ₹81 and pay with a ₹100 note. How much change do you get, in rupees?
22. 22.86 − 57 =
23. 23.53 − 29 =
24. 24.99 × 9 =
25. 25.5% of ₹120 =
26. 26.What is the remainder when 16 is divided by 3?
27. 27.56 + ? = 100
28. 28.You buy a pencil box for ₹165 and pay with a ₹500 note. How much change do you get, in rupees?
29. 29.78 + ? = 100
30. 30.You buy a box of crayons for ₹122 and pay with a ₹500 note. How much change do you get, in rupees?
31. 31.89 × 7 =
32. 32.56 − 25 =
33. 33.64 + ? = 100
34. 34.37 + 9 =
35. 35.13 × 7 =
36. 36.78 + 4 =
37. 37.38 laddoos are packed in boxes of 3. How many laddoos are left over?
38. 38.27 × 4 =
39. 39.78 + 51 =
40. 40.Best estimate of 772 + 217? (a) 800 (b) 1000 (c) 1200

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