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
- 1.96 ÷ 8 =
- 2.306 − 277 =
- 3.88 + 3 =
- 4.17 + 5 =
- 5.43 × 8 =
- 6.296 ÷ 8 =
- 7.27² =
- 8.Best estimate of 494 + 145? (a) 400 (b) 600 (c) 800
- 9.247 − 99 =
- 10.56 + 41 =
- 11.117 − 78 =
- 12.You start your homework at 4:20 and finish at 7:10. How many minutes did you work?
- 13.329 − 290 =
- 14.You buy a pencil box for ₹272 and pay with a ₹500 note. How much change do you get, in rupees?
- 15.Best estimate of 419 + 208? (a) 800 (b) 600 (c) 400
- 16.You start your homework at 3:30 and finish at 5:15. How many minutes did you work?
- 17.Best estimate of 52 × 68? (a) 350 (b) 3500 (c) 35000
- 18.34 + 56 =
- 19.Half of 34 =
- 20.Best estimate of 41 × 37? (a) 16000 (b) 160 (c) 1600
- 21.25% of ₹420 =
- 22.12 − 9 =
- 23.531 ÷ 9 =
- 24.You buy a storybook for ₹18 and a pen for ₹33. You pay with a ₹100 note. How much change do you get, in rupees?
- 25.50% of ₹640 =
- 26.1 + ? = 10
- 27.33 − 9 =
- 28.61 × 7 =
- 29.855 − 99 =
- 30.15 + 19 =
- 31.99 − 61 =
- 32.6 + 8 =
- 33.Double 24 =
- 34.Double 28 =
- 35.52 − 9 =
- 36.39 + 15 =
- 37.Best estimate of 227 + 201? (a) 200 (b) 400 (c) 600
- 38.10% of ₹380 =
- 39.19 + 4 =
- 40.140 ÷ 4 =
Answer key
- 12
- 29
- 91
- 22
- 344
- 37
- 729
- 600
- 148
- 97
- 39
- 170
- 39
- 228
- 600
- 105
- 3500
- 90
- 17
- 1600
- 105
- 3
- 59
- 49
- 320
- 9
- 24
- 427
- 756
- 34
- 38
- 14
- 48
- 56
- 43
- 54
- 400
- 38
- 23
- 35
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths