Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 908 · 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.Double 52 =
2. 2.A film starts at 8:10 and ends at 11:30. How many minutes long is the film?
3. 3.Half of 140 =
4. 4.28 + 6 =
5. 5.45 × 9 =
6. 6.66 + 12 =
7. 7.99 − 19 =
8. 8.A cricket match starts at 8:05 and the first innings ends at 9:35. How many minutes did the innings last?
9. 9.27 + 29 =
10. 10.Half of 190 =
11. 11.9 + ? = 10
12. 12.61 × 9 =
13. 13.52 − 13 =
14. 14.50% of ₹780 =
15. 15.64 + 9 =
16. 16.7 + 6 =
17. 17.You buy a notebook for ₹22 and a pen for ₹13. You pay with a ₹100 note. How much change do you get, in rupees?
18. 18.20 + 22 =
19. 19.11² =
20. 20.246 ÷ 6 =
21. 21.You buy a pencil box for ₹82 and pay with a ₹100 note. How much change do you get, in rupees?
22. 22.168 ÷ 8 =
23. 23.196 ÷ 4 =
24. 24.What is the remainder when 55 is divided by 6?
25. 25.116 ÷ 4 =
26. 26.34 × 8 =
27. 27.Double 77 =
28. 28.35 + 8 =
29. 29.25% of ₹370 =
30. 30.21 × 8 =
31. 31.212 ÷ 4 =
32. 32.51 + 37 =
33. 33.You buy a water bottle for ₹390 and pay with a ₹500 note. How much change do you get, in rupees?
34. 34.68 + 9 =
35. 35.96 − 17 =
36. 36.Best estimate of 598 + 620? (a) 1000 (b) 1400 (c) 1200
37. 37.81 − 9 =
38. 38.218 + 99 =
39. 39.6 + 8 =
40. 40.18 + 3 =

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