Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 207 · 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. 1.529 − 475 =
2. 2.57 + 61 =
3. 3.53 − 16 =
4. 4.39 × 4 =
5. 5.57 − 42 =
6. 6.52 + ? = 100
7. 7.96 × 9 =
8. 8.A train leaves at 6:10 and reaches the next city at 7:05. How many minutes is the journey?
9. 9.15 + 9 =
10. 10.90 − 28 =
11. 11.5% of ₹400 =
12. 12.Double 31 =
13. 13.A film starts at 4:15 and ends at 5:35. How many minutes long is the film?
14. 14.26 laddoos are packed in boxes of 3. How many laddoos are left over?
15. 15.Best estimate of 72 × 31? (a) 2100 (b) 210 (c) 21000
16. 16.21² =
17. 17.A cricket match starts at 1:15 and the first innings ends at 2:05. How many minutes did the innings last?
18. 18.26² =
19. 19.67 + 6 =
20. 20.85 − 16 =
21. 21.74 + 29 =
22. 22.62 − 19 =
23. 23.24 + 25 =
24. 24.91 laddoos are packed in boxes of 9. How many laddoos are left over?
25. 25.48 ÷ 4 =
26. 26.Double 55 =
27. 27.15 + 6 =
28. 28.You buy a bag of mangoes for ₹41 and pay with a ₹100 note. How much change do you get, in rupees?
29. 29.152 ÷ 4 =
30. 30.16 + 15 =
31. 31.61 laddoos are packed in boxes of 4. How many laddoos are left over?
32. 32.What is the remainder when 30 is divided by 4?
33. 33.42 ÷ 3 =
34. 34.29 children stand in rows of 4. How many full rows can they make?
35. 35.136 ÷ 8 =
36. 36.29 + 3 =
37. 37.77 − 14 =
38. 38.A film starts at 1:20 and ends at 1:45. How many minutes long is the film?
39. 39.76 + 7 =
40. 40.29² =

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