Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 634 · 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 kite for ₹14 and a pen for ₹27. You pay with a ₹100 note. How much change do you get, in rupees?
2. 2.112 ÷ 8 =
3. 3.A cricket match starts at 3:50 and the first innings ends at 4:25. How many minutes did the innings last?
4. 4.226 − 184 =
5. 5.A cricket match starts at 4:30 and the first innings ends at 6:20. How many minutes did the innings last?
6. 6.25² =
7. 7.Best estimate of 46 × 19? (a) 100 (b) 10000 (c) 1000
8. 8.1010 − 998 =
9. 9.You buy a cricket ball for ₹95 and pay with a ₹100 note. How much change do you get, in rupees?
10. 10.30 + 29 =
11. 11.31 × 4 =
12. 12.You buy a box of crayons for ₹315 and pay with a ₹500 note. How much change do you get, in rupees?
13. 13.Double 83 =
14. 14.5 + 6 =
15. 15.64 ÷ 4 =
16. 16.2 + ? = 10
17. 17.184 ÷ 8 =
18. 18.106 − 74 =
19. 19.25% of ₹230 =
20. 20.15 × 8 =
21. 21.48 − 9 =
22. 22.17 + 19 =
23. 23.16 + 9 =
24. 24.6 + ? = 10
25. 25.21 laddoos are packed in boxes of 4. How many laddoos are left over?
26. 26.A train leaves at 4:05 and reaches the next city at 6:00. How many minutes is the journey?
27. 27.59 + ? = 100
28. 28.21² =
29. 29.80 + ? = 100
30. 30.45 + 85 =
31. 31.28 − 9 =
32. 32.205 ÷ 5 =
33. 33.Double 19 =
34. 34.85 + 9 =
35. 35.Half of 84 =
36. 36.515 − 480 =
37. 37.11² =
38. 38.60 ÷ 4 =
39. 39.5% of ₹830 =
40. 40.96 × 7 =

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