Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 461 · 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. 1.666 ÷ 9 =
2. 2.25% of ₹210 =
3. 3.Best estimate of 28 × 98? (a) 30000 (b) 300 (c) 3000
4. 4.26² =
5. 5.A film starts at 2:50 and ends at 5:15. How many minutes long is the film?
6. 6.46 children stand in rows of 4. How many full rows can they make?
7. 7.248 ÷ 8 =
8. 8.21 + 28 =
9. 9.11² =
10. 10.112 ÷ 4 =
11. 11.18² =
12. 12.27² =
13. 13.41 − 29 =
14. 14.264 ÷ 8 =
15. 15.A train leaves at 6:30 and reaches the next city at 7:15. How many minutes is the journey?
16. 16.Best estimate of 511 + 845? (a) 1500 (b) 1100 (c) 1300
17. 17.25 + 58 =
18. 18.29 + 28 =
19. 19.25% of ₹860 =
20. 20.85 laddoos are packed in boxes of 6. How many laddoos are left over?
21. 21.10% of ₹70 =
22. 22.35 − 29 =
23. 23.188 ÷ 4 =
24. 24.You buy a notebook for ₹83 and pay with a ₹100 note. How much change do you get, in rupees?
25. 25.You buy a cricket ball for ₹196 and pay with a ₹500 note. How much change do you get, in rupees?
26. 26.25 + 27 =
27. 27.What is the remainder when 41 is divided by 7?
28. 28.37 children stand in rows of 6. How many full rows can they make?
29. 29.24 + 71 =
30. 30.8 + 7 =
31. 31.Best estimate of 94 × 57? (a) 54000 (b) 5400 (c) 540
32. 32.82 + ? = 100
33. 33.What is the remainder when 62 is divided by 9?
34. 34.46 + ? = 100
35. 35.You buy a pencil box for ₹17 and pay with a ₹100 note. How much change do you get, in rupees?
36. 36.You buy a notebook for ₹16 and a pen for ₹25. You pay with a ₹100 note. How much change do you get, in rupees?
37. 37.26 + ? = 100
38. 38.309 − 291 =
39. 39.You buy a notebook for ₹19 and pay with a ₹100 note. How much change do you get, in rupees?
40. 40.96 − 62 =

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