Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 289 · 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.What is the remainder when 45 is divided by 6?
2. 2.66 − 40 =
3. 3.72 − 62 =
4. 4.47 + 4 =
5. 5.760 ÷ 8 =
6. 6.216 − 177 =
7. 7.What is the remainder when 53 is divided by 4?
8. 8.A cricket match starts at 6:55 and the first innings ends at 7:55. How many minutes did the innings last?
9. 9.Best estimate of 194 + 515? (a) 500 (b) 900 (c) 700
10. 10.6 + 8 =
11. 11.13 × 5 =
12. 12.67 + 9 =
13. 13.Double 39 =
14. 14.Best estimate of 121 + 490? (a) 600 (b) 400 (c) 800
15. 15.24² =
16. 16.9 + 11 =
17. 17.73 − 32 =
18. 18.Best estimate of 560 + 818? (a) 1200 (b) 1600 (c) 1400
19. 19.66 + 78 =
20. 20.57 + 5 =
21. 21.13 + ? = 100
22. 22.52 + ? = 100
23. 23.455 ÷ 5 =
24. 24.21 + 23 =
25. 25.39 + 4 =
26. 26.515 − 494 =
27. 27.You buy a box of crayons for ₹22 and pay with a ₹100 note. How much change do you get, in rupees?
28. 28.74 × 4 =
29. 29.27 × 9 =
30. 30.75 + 52 =
31. 31.29 laddoos are packed in boxes of 3. How many laddoos are left over?
32. 32.512 − 482 =
33. 33.You buy a kite for ₹31 and a pen for ₹21. You pay with a ₹100 note. How much change do you get, in rupees?
34. 34.Double 99 =
35. 35.17² =
36. 36.Best estimate of 16 × 96? (a) 200 (b) 2000 (c) 20000
37. 37.Double 92 =
38. 38.168 ÷ 4 =
39. 39.144 ÷ 4 =
40. 40.19² =

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