Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 994 · 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. 1.2 + ? = 10
2. 2.36 × 8 =
3. 3.97 × 5 =
4. 4.Best estimate of 680 + 556? (a) 1500 (b) 1300 (c) 1100
5. 5.You buy a cricket ball for ₹29 and pay with a ₹100 note. How much change do you get, in rupees?
6. 6.11 + 12 =
7. 7.1 + ? = 10
8. 8.A train leaves at 8:15 and reaches the next city at 9:45. How many minutes is the journey?
9. 9.96 ÷ 4 =
10. 10.6 + 7 =
11. 11.70 − 31 =
12. 12.59 − 47 =
13. 13.52 × 7 =
14. 14.8 + 10 =
15. 15.30 + 19 =
16. 16.47 + 8 =
17. 17.25 + 63 =
18. 18.37 × 8 =
19. 19.22 × 8 =
20. 20.Half of 152 =
21. 21.13 + 15 =
22. 22.321 − 288 =
23. 23.66 − 13 =
24. 24.24 + 62 =
25. 25.69 + ? = 100
26. 26.Best estimate of 699 + 375? (a) 1100 (b) 900 (c) 1300
27. 27.222 ÷ 3 =
28. 28.Double 57 =
29. 29.18 + 19 =
30. 30.64 + 57 =
31. 31.119 − 82 =
32. 32.28 + 7 =
33. 33.You buy a notebook for ₹249 and pay with a ₹500 note. How much change do you get, in rupees?
34. 34.You buy a kite for ₹272 and pay with a ₹500 note. How much change do you get, in rupees?
35. 35.9 + 11 =
36. 36.90 − 59 =
37. 37.21 + 22 =
38. 38.477 ÷ 9 =
39. 39.A cricket match starts at 1:35 and the first innings ends at 2:15. How many minutes did the innings last?
40. 40.You buy a water bottle for ₹39 and a pen for ₹17. You pay with a ₹100 note. How much change do you get, in rupees?

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