Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 672 · 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. 1.12² =
2. 2.71 + ? = 100
3. 3.18 + 7 =
4. 4.330 ÷ 6 =
5. 5.104 ÷ 4 =
6. 6.What is the remainder when 39 is divided by 7?
7. 7.You buy a water bottle for ₹44 and a pen for ₹16. You pay with a ₹100 note. How much change do you get, in rupees?
8. 8.28 + 29 =
9. 9.86 − 27 =
10. 10.A train leaves at 8:00 and reaches the next city at 9:00. How many minutes is the journey?
11. 11.You buy a notebook for ₹478 and pay with a ₹500 note. How much change do you get, in rupees?
12. 12.77 × 4 =
13. 13.Double 69 =
14. 14.132 ÷ 4 =
15. 15.76 + 6 =
16. 16.You buy a pencil box for ₹13 and pay with a ₹100 note. How much change do you get, in rupees?
17. 17.539 ÷ 7 =
18. 18.323 − 284 =
19. 19.22 + 24 =
20. 20.522 − 492 =
21. 21.217 ÷ 7 =
22. 22.64 + ? = 100
23. 23.A film starts at 2:10 and ends at 4:25. How many minutes long is the film?
24. 24.You start your homework at 7:10 and finish at 9:00. How many minutes did you work?
25. 25.95 − 41 =
26. 26.84 + 81 =
27. 27.5% of ₹820 =
28. 28.15 + 16 =
29. 29.You start your homework at 6:40 and finish at 8:45. How many minutes did you work?
30. 30.Best estimate of 424 + 264? (a) 700 (b) 900 (c) 500
31. 31.A film starts at 8:45 and ends at 10:30. How many minutes long is the film?
32. 32.28 + 27 =
33. 33.19² =
34. 34.You start your homework at 5:50 and finish at 9:00. How many minutes did you work?
35. 35.What is the remainder when 56 is divided by 9?
36. 36.84 + ? = 100
37. 37.66 + 7 =
38. 38.38 + ? = 100
39. 39.A cricket match starts at 1:30 and the first innings ends at 4:00. How many minutes did the innings last?
40. 40.445 ÷ 5 =

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