Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 32 · 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. 1.66 + 9 =
2. 2.A train leaves at 6:35 and reaches the next city at 8:30. How many minutes is the journey?
3. 3.You start your homework at 5:30 and finish at 8:00. How many minutes did you work?
4. 4.What is the remainder when 99 is divided by 8?
5. 5.10 + 11 =
6. 6.You buy a bag of mangoes for ₹11 and pay with a ₹100 note. How much change do you get, in rupees?
7. 7.152 ÷ 8 =
8. 8.65 + 52 =
9. 9.Double 67 =
10. 10.You buy a pencil box for ₹12 and pay with a ₹100 note. How much change do you get, in rupees?
11. 11.65 laddoos are packed in boxes of 9. How many laddoos are left over?
12. 12.A train leaves at 3:30 and reaches the next city at 6:25. How many minutes is the journey?
13. 13.230 − 194 =
14. 14.Double 79 =
15. 15.You buy a pencil box for ₹416 and pay with a ₹500 note. How much change do you get, in rupees?
16. 16.72 + 19 =
17. 17.26 + 25 =
18. 18.11² =
19. 19.248 ÷ 8 =
20. 20.25 + 24 =
21. 21.Best estimate of 76 × 28? (a) 240 (b) 24000 (c) 2400
22. 22.Double 52 =
23. 23.52 − 41 =
24. 24.A cricket match starts at 2:55 and the first innings ends at 3:55. How many minutes did the innings last?
25. 25.26 × 8 =
26. 26.84 × 3 =
27. 27.50% of ₹320 =
28. 28.225 ÷ 9 =
29. 29.25 + 66 =
30. 30.210 − 178 =
31. 31.Double 51 =
32. 32.12 + 11 =
33. 33.10% of ₹80 =
34. 34.Best estimate of 121 + 311? (a) 200 (b) 400 (c) 600
35. 35.54 − 18 =
36. 36.82 − 43 =
37. 37.24² =
38. 38.Double 19 =
39. 39.648 ÷ 8 =
40. 40.You buy a pencil box for ₹37 and a pen for ₹37. You pay with a ₹100 note. How much change do you get, in rupees?

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