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
- 1.17² =
- 2.11² =
- 3.36 × 8 =
- 4.55 + 84 =
- 5.63 − 19 =
- 6.10% of ₹880 =
- 7.9 + 2 =
- 8.30 + 31 =
- 9.15² =
- 10.Best estimate of 596 + 803? (a) 1200 (b) 1600 (c) 1400
- 11.1009 − 995 =
- 12.64 − 29 =
- 13.5% of ₹410 =
- 14.30 + 19 =
- 15.Best estimate of 358 + 168? (a) 600 (b) 400 (c) 800
- 16.5% of ₹40 =
- 17.Best estimate of 613 + 219? (a) 800 (b) 600 (c) 1000
- 18.93 ÷ 3 =
- 19.12 × 8 =
- 20.59 − 28 =
- 21.41 + 15 =
- 22.102 ÷ 3 =
- 23.27 × 5 =
- 24.79 × 4 =
- 25.A film starts at 2:10 and ends at 3:55. How many minutes long is the film?
- 26.156 ÷ 4 =
- 27.47 laddoos are packed in boxes of 3. How many laddoos are left over?
- 28.You buy a bag of mangoes for ₹80 and pay with a ₹100 note. How much change do you get, in rupees?
- 29.23² =
- 30.23 + 25 =
- 31.Half of 60 =
- 32.Best estimate of 37 × 14? (a) 400 (b) 4000 (c) 40
- 33.76 + 9 =
- 34.19 + ? = 100
- 35.85 laddoos are packed in boxes of 9. How many laddoos are left over?
- 36.Best estimate of 21 × 17? (a) 40 (b) 400 (c) 4000
- 37.65 + ? = 100
- 38.50 × 4 =
- 39.256 ÷ 8 =
- 40.65 + 9 =
Answer key
- 289
- 121
- 288
- 139
- 44
- 88
- 11
- 61
- 225
- 1400
- 14
- 35
- 20.5
- 49
- 600
- 2
- 800
- 31
- 96
- 31
- 56
- 34
- 135
- 316
- 105
- 39
- 2
- 20
- 529
- 48
- 30
- 400
- 85
- 81
- 4
- 400
- 35
- 200
- 32
- 74
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths