Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 14 · 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.You buy a notebook for ₹32 and a pen for ₹36. You pay with a ₹100 note. How much change do you get, in rupees?
2. 2.What is the remainder when 47 is divided by 3?
3. 3.34 × 5 =
4. 4.37 + 6 =
5. 5.25 + 24 =
6. 6.10% of ₹650 =
7. 7.25% of ₹500 =
8. 8.Half of 82 =
9. 9.22² =
10. 10.Best estimate of 16 × 70? (a) 14000 (b) 140 (c) 1400
11. 11.50% of ₹400 =
12. 12.160 ÷ 8 =
13. 13.154 ÷ 7 =
14. 14.17 + 18 =
15. 15.275 + 99 =
16. 16.63 + ? = 100
17. 17.Best estimate of 31 × 39? (a) 1200 (b) 12000 (c) 120
18. 18.You buy a kite for ₹270 and pay with a ₹500 note. How much change do you get, in rupees?
19. 19.78 − 19 =
20. 20.A cricket match starts at 4:20 and the first innings ends at 6:20. How many minutes did the innings last?
21. 21.13 + 12 =
22. 22.Double 17 =
23. 23.10% of ₹490 =
24. 24.55 + 6 =
25. 25.33 + 66 =
26. 26.You buy a cricket ball for ₹26 and a pen for ₹16. You pay with a ₹100 note. How much change do you get, in rupees?
27. 27.71 × 7 =
28. 28.232 ÷ 4 =
29. 29.Best estimate of 76 × 40? (a) 3200 (b) 32000 (c) 320
30. 30.92 × 5 =
31. 31.76 − 49 =
32. 32.A cricket match starts at 4:45 and the first innings ends at 6:25. How many minutes did the innings last?
33. 33.22 × 8 =
34. 34.10 + 9 =
35. 35.116 children stand in rows of 9. How many full rows can they make?
36. 36.81 × 5 =
37. 37.56 + 7 =
38. 38.211 + 99 =
39. 39.21 × 4 =
40. 40.59 + 29 =

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