Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 18 · 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.You buy a cricket ball for ₹440 and pay with a ₹500 note. How much change do you get, in rupees?
2. 2.5% of ₹400 =
3. 3.You buy a notebook for ₹90 and pay with a ₹100 note. How much change do you get, in rupees?
4. 4.49 × 8 =
5. 5.60 − 19 =
6. 6.25% of ₹470 =
7. 7.176 ÷ 8 =
8. 8.53 + 27 =
9. 9.67 − 52 =
10. 10.Double 33 =
11. 11.34 × 3 =
12. 12.5% of ₹730 =
13. 13.A train leaves at 7:00 and reaches the next city at 10:00. How many minutes is the journey?
14. 14.12 + 14 =
15. 15.33 × 3 =
16. 16.42 × 4 =
17. 17.13² =
18. 18.69 − 34 =
19. 19.You buy a water bottle for ₹485 and pay with a ₹500 note. How much change do you get, in rupees?
20. 20.1018 − 983 =
21. 21.11² =
22. 22.14² =
23. 23.35 + 6 =
24. 24.13 − 9 =
25. 25.304 ÷ 8 =
26. 26.35 + 7 =
27. 27.20 × 8 =
28. 28.46 + ? = 100
29. 29.96 − 26 =
30. 30.53 × 4 =
31. 31.Double 92 =
32. 32.22 + 21 =
33. 33.184 ÷ 8 =
34. 34.37 + 9 =
35. 35.A cricket match starts at 8:40 and the first innings ends at 9:10. How many minutes did the innings last?
36. 36.Double 96 =
37. 37.46 + 7 =
38. 38.5% of ₹430 =
39. 39.6 + 7 =
40. 40.Best estimate of 813 + 354? (a) 1400 (b) 1000 (c) 1200

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