Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 64 · 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. 1.86 + 75 =
2. 2.136 ÷ 8 =
3. 3.184 ÷ 4 =
4. 4.32 × 8 =
5. 5.You buy a box of crayons for ₹17 and a pen for ₹14. You pay with a ₹100 note. How much change do you get, in rupees?
6. 6.76 laddoos are packed in boxes of 5. How many laddoos are left over?
7. 7.29 + 3 =
8. 8.93 − 69 =
9. 9.15² =
10. 10.26 + 25 =
11. 11.16 + 8 =
12. 12.88 + 6 =
13. 13.64 + 44 =
14. 14.Half of 98 =
15. 15.62 × 4 =
16. 16.7 + 5 =
17. 17.Double 98 =
18. 18.You buy a notebook for ₹307 and pay with a ₹500 note. How much change do you get, in rupees?
19. 19.A cricket match starts at 1:15 and the first innings ends at 2:00. How many minutes did the innings last?
20. 20.224 ÷ 4 =
21. 21.340 ÷ 5 =
22. 22.64 − 41 =
23. 23.A cricket match starts at 3:20 and the first innings ends at 4:05. How many minutes did the innings last?
24. 24.6 + ? = 10
25. 25.64 ÷ 4 =
26. 26.A film starts at 1:30 and ends at 2:15. How many minutes long is the film?
27. 27.18 + 19 =
28. 28.28 + 5 =
29. 29.55 × 8 =
30. 30.A train leaves at 7:10 and reaches the next city at 10:20. How many minutes is the journey?
31. 31.26² =
32. 32.5 + 8 =
33. 33.56 − 19 =
34. 34.60 − 13 =
35. 35.72 × 5 =
36. 36.69 + 8 =
37. 37.You buy a kite for ₹13 and pay with a ₹100 note. How much change do you get, in rupees?
38. 38.37 + 9 =
39. 39.517 − 496 =
40. 40.79 + 4 =

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