Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 359 · 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. 1.7 + 6 =
2. 2.62 + 9 =
3. 3.21 × 3 =
4. 4.A cricket match starts at 8:10 and the first innings ends at 9:00. How many minutes did the innings last?
5. 5.A film starts at 5:50 and ends at 7:30. How many minutes long is the film?
6. 6.72 − 38 =
7. 7.228 − 175 =
8. 8.38 + 64 =
9. 9.80 − 29 =
10. 10.27 + 49 =
11. 11.Double 21 =
12. 12.30 + 29 =
13. 13.You buy a notebook for ₹434 and pay with a ₹500 note. How much change do you get, in rupees?
14. 14.You buy a notebook for ₹65 and pay with a ₹100 note. How much change do you get, in rupees?
15. 15.75 ÷ 3 =
16. 16.60 ÷ 4 =
17. 17.50% of ₹890 =
18. 18.21 + 85 =
19. 19.224 − 186 =
20. 20.112 ÷ 8 =
21. 21.67 + 6 =
22. 22.12 + 14 =
23. 23.59 + 19 =
24. 24.39 × 8 =
25. 25.You buy a notebook for ₹14 and a pen for ₹26. You pay with a ₹100 note. How much change do you get, in rupees?
26. 26.26 + 28 =
27. 27.Best estimate of 90 × 72? (a) 63000 (b) 6300 (c) 630
28. 28.25% of ₹60 =
29. 29.50 children stand in rows of 9. How many full rows can they make?
30. 30.80 + 22 =
31. 31.29 × 3 =
32. 32.96 ÷ 8 =
33. 33.86 + 5 =
34. 34.You buy a notebook for ₹207 and pay with a ₹500 note. How much change do you get, in rupees?
35. 35.14² =
36. 36.41 × 8 =
37. 37.25% of ₹380 =
38. 38.43 + ? = 100
39. 39.97 − 73 =
40. 40.29² =

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