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.A film starts at 3:30 and ends at 4:30. How many minutes long is the film?
- 3.18 × 4 =
- 4.52 + 47 =
- 5.17² =
- 6.25 × 8 =
- 7.86 + 7 =
- 8.You buy a kite for ₹16 and a pen for ₹18. You pay with a ₹100 note. How much change do you get, in rupees?
- 9.72 − 43 =
- 10.30 + 86 =
- 11.100 children stand in rows of 8. How many full rows can they make?
- 12.27 + 29 =
- 13.Half of 64 =
- 14.34 children stand in rows of 8. How many full rows can they make?
- 15.390 ÷ 6 =
- 16.You start your homework at 2:25 and finish at 3:00. How many minutes did you work?
- 17.83 + 22 =
- 18.32 × 4 =
- 19.35 × 4 =
- 20.3 + ? = 10
- 21.A cricket match starts at 2:10 and the first innings ends at 2:55. How many minutes did the innings last?
- 22.65 + 9 =
- 23.7 + 8 =
- 24.You buy a box of crayons for ₹180 and pay with a ₹500 note. How much change do you get, in rupees?
- 25.27 + 26 =
- 26.228 ÷ 4 =
- 27.Double 36 =
- 28.A cricket match starts at 8:20 and the first innings ends at 9:15. How many minutes did the innings last?
- 29.23 + 79 =
- 30.You buy a kite for ₹415 and pay with a ₹500 note. How much change do you get, in rupees?
- 31.77 × 5 =
- 32.29 + 4 =
- 33.76 − 46 =
- 34.Best estimate of 60 × 26? (a) 18000 (b) 1800 (c) 180
- 35.208 ÷ 8 =
- 36.Best estimate of 507 + 168? (a) 700 (b) 900 (c) 500
- 37.55 − 44 =
- 38.64 + 59 =
- 39.8 + 6 =
- 40.88 + 51 =
Answer key
- 729
- 60
- 72
- 99
- 289
- 200
- 93
- 66
- 29
- 116
- 12
- 56
- 32
- 4
- 65
- 35
- 105
- 128
- 140
- 7
- 45
- 74
- 15
- 320
- 53
- 57
- 72
- 55
- 102
- 85
- 385
- 33
- 30
- 1800
- 26
- 700
- 11
- 123
- 14
- 139
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths