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
- 1.144 ÷ 8 =
- 2.A train leaves at 1:20 and reaches the next city at 2:05. How many minutes is the journey?
- 3.25 × 8 =
- 4.A film starts at 3:20 and ends at 6:25. How many minutes long is the film?
- 5.Best estimate of 97 × 89? (a) 90000 (b) 9000 (c) 900
- 6.160 ÷ 8 =
- 7.A train leaves at 4:10 and reaches the next city at 5:05. How many minutes is the journey?
- 8.Best estimate of 86 × 26? (a) 27000 (b) 270 (c) 2700
- 9.1026 − 980 =
- 10.26 × 8 =
- 11.107 − 70 =
- 12.66 − 42 =
- 13.26 × 4 =
- 14.10 + 9 =
- 15.18 + 4 =
- 16.Best estimate of 26 × 47? (a) 150 (b) 15000 (c) 1500
- 17.68 − 47 =
- 18.What is the remainder when 69 is divided by 9?
- 19.18 + 17 =
- 20.23 + 29 =
- 21.Half of 72 =
- 22.56 × 4 =
- 23.Best estimate of 369 + 334? (a) 500 (b) 900 (c) 700
- 24.80 + ? = 100
- 25.24 + 72 =
- 26.26 + 28 =
- 27.85 + 6 =
- 28.20 + 21 =
- 29.14 + 16 =
- 30.7 + 8 =
- 31.66 + 55 =
- 32.50% of ₹90 =
- 33.51 − 9 =
- 34.You buy a kite for ₹149 and pay with a ₹500 note. How much change do you get, in rupees?
- 35.Best estimate of 44 × 50? (a) 20000 (b) 2000 (c) 200
- 36.17 + 18 =
- 37.77 × 8 =
- 38.38 laddoos are packed in boxes of 5. How many laddoos are left over?
- 39.Best estimate of 70 × 94? (a) 63000 (b) 6300 (c) 630
- 40.64 + 12 =
Answer key
- 18
- 45
- 200
- 185
- 9000
- 20
- 55
- 2700
- 46
- 208
- 37
- 24
- 104
- 19
- 22
- 1500
- 21
- 6
- 35
- 52
- 36
- 224
- 700
- 20
- 96
- 54
- 91
- 41
- 30
- 15
- 121
- 45
- 42
- 351
- 2000
- 35
- 616
- 3
- 6300
- 76
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths