Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 29 · 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. 1.11² =
2. 2.88 ÷ 8 =
3. 3.7 + ? = 10
4. 4.14² =
5. 5.You start your homework at 5:00 and finish at 5:40. How many minutes did you work?
6. 6.A train leaves at 4:50 and reaches the next city at 6:25. How many minutes is the journey?
7. 7.164 ÷ 4 =
8. 8.310 − 280 =
9. 9.236 ÷ 4 =
10. 10.36 + 6 =
11. 11.43 − 9 =
12. 12.72 + 33 =
13. 13.3 + ? = 10
14. 14.24 + ? = 100
15. 15.You buy a notebook for ₹41 and a pen for ₹28. You pay with a ₹100 note. How much change do you get, in rupees?
16. 16.15 + 16 =
17. 17.98 × 8 =
18. 18.42 + 22 =
19. 19.26 + 25 =
20. 20.8 + 10 =
21. 21.64 + 19 =
22. 22.26 + 28 =
23. 23.39 × 4 =
24. 24.24² =
25. 25.38 + 7 =
26. 26.1 + ? = 10
27. 27.46 children stand in rows of 5. How many full rows can they make?
28. 28.129 − 91 =
29. 29.25% of ₹550 =
30. 30.67 − 19 =
31. 31.1014 − 983 =
32. 32.46 + 13 =
33. 33.51 × 8 =
34. 34.You start your homework at 4:40 and finish at 6:40. How many minutes did you work?
35. 35.44 × 4 =
36. 36.39 + 45 =
37. 37.72 × 4 =
38. 38.Half of 60 =
39. 39.A cricket match starts at 8:40 and the first innings ends at 11:50. How many minutes did the innings last?
40. 40.99 − 19 =

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