Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 727 · 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. 1.78 ÷ 3 =
2. 2.26 + 28 =
3. 3.A cricket match starts at 7:45 and the first innings ends at 8:30. How many minutes did the innings last?
4. 4.82 + 67 =
5. 5.74 children stand in rows of 8. How many full rows can they make?
6. 6.Half of 60 =
7. 7.73 × 4 =
8. 8.105 ÷ 5 =
9. 9.Half of 72 =
10. 10.27 + 29 =
11. 11.You buy a water bottle for ₹31 and a pen for ₹18. You pay with a ₹100 note. How much change do you get, in rupees?
12. 12.227 − 178 =
13. 13.Best estimate of 630 + 376? (a) 1000 (b) 1200 (c) 800
14. 14.112 ÷ 8 =
15. 15.95 laddoos are packed in boxes of 7. How many laddoos are left over?
16. 16.101 laddoos are packed in boxes of 7. How many laddoos are left over?
17. 17.Double 81 =
18. 18.You buy a pencil box for ₹74 and pay with a ₹100 note. How much change do you get, in rupees?
19. 19.40 × 8 =
20. 20.Half of 58 =
21. 21.Double 92 =
22. 22.10% of ₹340 =
23. 23.30 − 9 =
24. 24.39 − 29 =
25. 25.9 + 2 =
26. 26.72 − 46 =
27. 27.76 + 18 =
28. 28.Double 72 =
29. 29.A film starts at 7:40 and ends at 9:15. How many minutes long is the film?
30. 30.What is the remainder when 109 is divided by 9?
31. 31.You buy a pencil box for ₹31 and a pen for ₹17. You pay with a ₹100 note. How much change do you get, in rupees?
32. 32.46 children stand in rows of 8. How many full rows can they make?
33. 33.11² =
34. 34.6 + ? = 10
35. 35.74 × 6 =
36. 36.75 + 7 =
37. 37.54 + 19 =
38. 38.33 children stand in rows of 5. How many full rows can they make?
39. 39.28 × 4 =
40. 40.57 + 4 =

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