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
- 1.16 × 8 =
- 2.2 + ? = 10
- 3.114 children stand in rows of 8. How many full rows can they make?
- 4.15 × 8 =
- 5.60 − 24 =
- 6.You start your homework at 6:55 and finish at 7:50. How many minutes did you work?
- 7.Best estimate of 77 × 66? (a) 560 (b) 56000 (c) 5600
- 8.Half of 176 =
- 9.73 × 4 =
- 10.Double 58 =
- 11.70 − 56 =
- 12.Best estimate of 537 + 242? (a) 900 (b) 700 (c) 500
- 13.55 + 17 =
- 14.220 ÷ 5 =
- 15.10% of ₹230 =
- 16.14² =
- 17.42 × 8 =
- 18.78 − 23 =
- 19.61 + 76 =
- 20.25% of ₹40 =
- 21.828 ÷ 9 =
- 22.89 + ? = 100
- 23.41 + 51 =
- 24.114 children stand in rows of 9. How many full rows can they make?
- 25.228 ÷ 4 =
- 26.21 + 20 =
- 27.105 − 71 =
- 28.81 − 9 =
- 29.1 + ? = 10
- 30.61 + ? = 100
- 31.A film starts at 3:10 and ends at 3:50. How many minutes long is the film?
- 32.504 − 496 =
- 33.76 + ? = 100
- 34.3 + ? = 10
- 35.What is the remainder when 99 is divided by 7?
- 36.You buy a water bottle for ₹57 and pay with a ₹100 note. How much change do you get, in rupees?
- 37.101 − 78 =
- 38.225 − 176 =
- 39.80 + 23 =
- 40.Half of 88 =
Answer key
- 128
- 8
- 14
- 120
- 36
- 55
- 5600
- 88
- 292
- 116
- 14
- 700
- 72
- 44
- 23
- 196
- 336
- 55
- 137
- 10
- 92
- 11
- 92
- 12
- 57
- 41
- 34
- 72
- 9
- 39
- 40
- 8
- 24
- 7
- 1
- 43
- 23
- 49
- 103
- 44
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths