Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 504 · 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. 1.6 + 7 =
2. 2.What is the remainder when 47 is divided by 6?
3. 3.17 × 8 =
4. 4.3 + ? = 10
5. 5.37 + 89 =
6. 6.118 − 92 =
7. 7.25% of ₹290 =
8. 8.84 − 16 =
9. 9.Double 38 =
10. 10.176 ÷ 8 =
11. 11.79 + 67 =
12. 12.11² =
13. 13.You buy a kite for ₹17 and pay with a ₹100 note. How much change do you get, in rupees?
14. 14.344 ÷ 4 =
15. 15.You buy a kite for ₹29 and a pen for ₹24. You pay with a ₹100 note. How much change do you get, in rupees?
16. 16.71 + 59 =
17. 17.14² =
18. 18.87 + 8 =
19. 19.7 + 4 =
20. 20.15 + 16 =
21. 21.A train leaves at 6:15 and reaches the next city at 6:40. How many minutes is the journey?
22. 22.15 + 29 =
23. 23.You buy a cricket ball for ₹52 and pay with a ₹100 note. How much change do you get, in rupees?
24. 24.A film starts at 4:35 and ends at 6:20. How many minutes long is the film?
25. 25.You buy a bag of mangoes for ₹41 and pay with a ₹100 note. How much change do you get, in rupees?
26. 26.53 + ? = 100
27. 27.25 + 8 =
28. 28.You buy a cricket ball for ₹243 and pay with a ₹500 note. How much change do you get, in rupees?
29. 29.26² =
30. 30.Double 63 =
31. 31.75 − 12 =
32. 32.35 + ? = 100
33. 33.125 ÷ 5 =
34. 34.91 − 59 =
35. 35.94 children stand in rows of 7. How many full rows can they make?
36. 36.Double 66 =
37. 37.A train leaves at 4:45 and reaches the next city at 5:55. How many minutes is the journey?
38. 38.A film starts at 6:55 and ends at 9:30. How many minutes long is the film?
39. 39.115 − 89 =
40. 40.A train leaves at 7:30 and reaches the next city at 9:05. How many minutes is the journey?

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