Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 147 · 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 ₹147 and pay with a ₹500 note. How much change do you get, in rupees?
2. 2.Best estimate of 248 + 222? (a) 200 (b) 400 (c) 600
3. 3.176 ÷ 8 =
4. 4.105 − 71 =
5. 5.81 − 18 =
6. 6.69 − 9 =
7. 7.328 − 282 =
8. 8.130 − 84 =
9. 9.59 × 4 =
10. 10.Double 37 =
11. 11.Best estimate of 134 + 206? (a) 100 (b) 500 (c) 300
12. 12.34 × 8 =
13. 13.312 ÷ 8 =
14. 14.A cricket match starts at 5:15 and the first innings ends at 6:35. How many minutes did the innings last?
15. 15.1025 − 981 =
16. 16.10% of ₹240 =
17. 17.66 children stand in rows of 9. How many full rows can they make?
18. 18.584 ÷ 8 =
19. 19.29 + 4 =
20. 20.27 + 29 =
21. 21.62 − 51 =
22. 22.79 − 61 =
23. 23.Best estimate of 127 + 248? (a) 500 (b) 100 (c) 300
24. 24.76 ÷ 4 =
25. 25.280 ÷ 8 =
26. 26.29 + 17 =
27. 27.73 × 4 =
28. 28.You buy a box of crayons for ₹66 and pay with a ₹100 note. How much change do you get, in rupees?
29. 29.11 + 12 =
30. 30.136 ÷ 4 =
31. 31.14 + ? = 100
32. 32.Best estimate of 59 × 42? (a) 240 (b) 24000 (c) 2400
33. 33.You buy a pencil box for ₹152 and pay with a ₹500 note. How much change do you get, in rupees?
34. 34.30 + 31 =
35. 35.44 × 4 =
36. 36.25% of ₹330 =
37. 37.A train leaves at 2:15 and reaches the next city at 4:35. How many minutes is the journey?
38. 38.65 + 8 =
39. 39.275 ÷ 5 =
40. 40.27 + 5 =

Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths