Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 484 · 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.A train leaves at 5:40 and reaches the next city at 7:20. How many minutes is the journey?
2. 2.50% of ₹250 =
3. 3.93 − 19 =
4. 4.26² =
5. 5.156 ÷ 4 =
6. 6.22 + 23 =
7. 7.You buy a bag of mangoes for ₹25 and a pen for ₹45. You pay with a ₹100 note. How much change do you get, in rupees?
8. 8.Best estimate of 34 × 86? (a) 2700 (b) 270 (c) 27000
9. 9.47 laddoos are packed in boxes of 7. How many laddoos are left over?
10. 10.71 + 73 =
11. 11.96 ÷ 4 =
12. 12.86 + 31 =
13. 13.112 ÷ 8 =
14. 14.78 + 18 =
15. 15.18 + 9 =
16. 16.23² =
17. 17.78 + 5 =
18. 18.288 ÷ 8 =
19. 19.10% of ₹870 =
20. 20.516 − 490 =
21. 21.You buy a notebook for ₹58 and pay with a ₹100 note. How much change do you get, in rupees?
22. 22.A cricket match starts at 4:15 and the first innings ends at 6:25. How many minutes did the innings last?
23. 23.What is the remainder when 33 is divided by 8?
24. 24.Double 25 =
25. 25.Double 47 =
26. 26.You buy a box of crayons for ₹455 and pay with a ₹500 note. How much change do you get, in rupees?
27. 27.89 × 9 =
28. 28.50% of ₹110 =
29. 29.Half of 30 =
30. 30.You buy a notebook for ₹23 and pay with a ₹100 note. How much change do you get, in rupees?
31. 31.52 ÷ 4 =
32. 32.65 − 21 =
33. 33.55 + ? = 100
34. 34.66 + 6 =
35. 35.47 + ? = 100
36. 36.87 + 7 =
37. 37.76 × 8 =
38. 38.17 + 18 =
39. 39.21² =
40. 40.48 ÷ 4 =

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