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
- 1.56 ÷ 4 =
- 2.85 × 4 =
- 3.160 ÷ 4 =
- 4.25² =
- 5.35 + 7 =
- 6.Best estimate of 656 + 168? (a) 1100 (b) 700 (c) 900
- 7.320 − 275 =
- 8.21 + 20 =
- 9.78 + 33 =
- 10.39 × 4 =
- 11.96 − 57 =
- 12.You buy a pencil box for ₹76 and pay with a ₹100 note. How much change do you get, in rupees?
- 13.38 × 8 =
- 14.A train leaves at 8:55 and reaches the next city at 11:55. How many minutes is the journey?
- 15.84 ÷ 4 =
- 16.12² =
- 17.20 + 21 =
- 18.55 + 17 =
- 19.5% of ₹320 =
- 20.29 + 6 =
- 21.192 ÷ 8 =
- 22.A film starts at 2:45 and ends at 6:00. How many minutes long is the film?
- 23.Best estimate of 188 + 562? (a) 600 (b) 800 (c) 1000
- 24.59 + 5 =
- 25.You buy a notebook for ₹447 and pay with a ₹500 note. How much change do you get, in rupees?
- 26.168 ÷ 4 =
- 27.You buy a bag of mangoes for ₹64 and pay with a ₹100 note. How much change do you get, in rupees?
- 28.75 + 6 =
- 29.28 + ? = 100
- 30.27 × 4 =
- 31.248 ÷ 8 =
- 32.16 + 15 =
- 33.50% of ₹190 =
- 34.93 − 13 =
- 35.71 − 42 =
- 36.Best estimate of 17 × 96? (a) 2000 (b) 20000 (c) 200
- 37.448 ÷ 7 =
- 38.Half of 154 =
- 39.50 + ? = 100
- 40.21² =
Answer key
- 14
- 340
- 40
- 625
- 42
- 900
- 45
- 41
- 111
- 156
- 39
- 24
- 304
- 180
- 21
- 144
- 41
- 72
- 16
- 35
- 24
- 195
- 800
- 64
- 53
- 42
- 36
- 81
- 72
- 108
- 31
- 31
- 95
- 80
- 29
- 2000
- 64
- 77
- 50
- 441
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths