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
- 1.27² =
- 2.22 × 8 =
- 3.18² =
- 4.315 − 298 =
- 5.80 − 27 =
- 6.49 + 2 =
- 7.8 + ? = 10
- 8.You buy a kite for ₹95 and pay with a ₹100 note. How much change do you get, in rupees?
- 9.357 ÷ 7 =
- 10.386 + 99 =
- 11.680 ÷ 8 =
- 12.28 + 29 =
- 13.92 laddoos are packed in boxes of 6. How many laddoos are left over?
- 14.30 × 4 =
- 15.You start your homework at 1:10 and finish at 2:30. How many minutes did you work?
- 16.63 × 4 =
- 17.Double 29 =
- 18.Best estimate of 77 × 76? (a) 640 (b) 6400 (c) 64000
- 19.77 + 8 =
- 20.307 − 280 =
- 21.15 × 4 =
- 22.You start your homework at 1:10 and finish at 2:45. How many minutes did you work?
- 23.23 + ? = 100
- 24.31 + 19 =
- 25.16² =
- 26.58 + 19 =
- 27.20 + 19 =
- 28.A train leaves at 1:35 and reaches the next city at 3:45. How many minutes is the journey?
- 29.297 ÷ 3 =
- 30.Best estimate of 64 × 17? (a) 12000 (b) 1200 (c) 120
- 31.49 + 84 =
- 32.68 + 5 =
- 33.801 ÷ 9 =
- 34.Double 51 =
- 35.6 + 7 =
- 36.A film starts at 3:25 and ends at 3:50. How many minutes long is the film?
- 37.212 − 198 =
- 38.57 × 4 =
- 39.130 laddoos are packed in boxes of 9. How many laddoos are left over?
- 40.Half of 76 =
Answer key
- 729
- 176
- 324
- 17
- 53
- 51
- 2
- 5
- 51
- 485
- 85
- 57
- 2
- 120
- 80
- 252
- 58
- 6400
- 85
- 27
- 60
- 95
- 77
- 50
- 256
- 77
- 39
- 130
- 99
- 1200
- 133
- 73
- 89
- 102
- 13
- 25
- 14
- 228
- 4
- 38
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths