Mental Maths Questions Worksheet for Class 5
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.
NameDateTime takenScore ___ / 40
- 1.You start your homework at 3:30 and finish at 5:50. How many minutes did you work?
- 2.50% of ₹700 =
- 3.50% of ₹430 =
- 4.29 + ? = 100
- 5.46 − 29 =
- 6.Best estimate of 13 × 51? (a) 500 (b) 5000 (c) 50
- 7.A film starts at 5:00 and ends at 7:25. How many minutes long is the film?
- 8.A film starts at 4:20 and ends at 7:35. How many minutes long is the film?
- 9.9 + 10 =
- 10.Best estimate of 32 × 63? (a) 180 (b) 1800 (c) 18000
- 11.71 laddoos are packed in boxes of 6. How many laddoos are left over?
- 12.390 ÷ 5 =
- 13.95 ÷ 5 =
- 14.Double 51 =
- 15.55 children stand in rows of 7. How many full rows can they make?
- 16.10 + 12 =
- 17.Best estimate of 145 + 231? (a) 100 (b) 500 (c) 300
- 18.91 − 19 =
- 19.238 ÷ 7 =
- 20.What is the remainder when 17 is divided by 3?
- 21.90 − 59 =
- 22.75 + 19 =
- 23.39 + ? = 100
- 24.23² =
- 25.43 + 34 =
- 26.20 + 19 =
- 27.32 − 19 =
- 28.4 + ? = 10
- 29.54 + ? = 100
- 30.16² =
- 31.82 + 19 =
- 32.108 ÷ 4 =
- 33.What is the remainder when 31 is divided by 5?
- 34.224 ÷ 4 =
- 35.390 ÷ 6 =
- 36.25 − 19 =
- 37.52 × 7 =
- 38.26² =
- 39.You buy a pencil box for ₹55 and pay with a ₹100 note. How much change do you get, in rupees?
- 40.19 + ? = 100
Answer key
- 140
- 350
- 215
- 71
- 17
- 500
- 145
- 195
- 19
- 1800
- 5
- 78
- 19
- 102
- 7
- 22
- 300
- 72
- 34
- 2
- 31
- 94
- 61
- 529
- 77
- 39
- 13
- 6
- 46
- 256
- 101
- 27
- 1
- 56
- 65
- 6
- 364
- 676
- 45
- 81
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths