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
- 1.77 + 4 =
- 2.19² =
- 3.You buy a water bottle for ₹23 and a pen for ₹42. You pay with a ₹100 note. How much change do you get, in rupees?
- 4.75 + 9 =
- 5.17 × 4 =
- 6.10% of ₹820 =
- 7.A film starts at 3:05 and ends at 5:25. How many minutes long is the film?
- 8.52 + ? = 100
- 9.312 ÷ 8 =
- 10.22² =
- 11.21² =
- 12.64 − 16 =
- 13.Best estimate of 332 + 170? (a) 300 (b) 500 (c) 700
- 14.521 − 498 =
- 15.A cricket match starts at 3:00 and the first innings ends at 3:50. How many minutes did the innings last?
- 16.17 × 9 =
- 17.Best estimate of 94 × 28? (a) 2700 (b) 27000 (c) 270
- 18.Best estimate of 214 + 672? (a) 900 (b) 1100 (c) 700
- 19.27 + 28 =
- 20.53 + 31 =
- 21.34 + 19 =
- 22.85 + 9 =
- 23.49 + 46 =
- 24.59 + 6 =
- 25.29 + 31 =
- 26.58 + 7 =
- 27.153 ÷ 3 =
- 28.301 − 284 =
- 29.61 × 4 =
- 30.20 children stand in rows of 3. How many full rows can they make?
- 31.59 − 45 =
- 32.17² =
- 33.512 − 498 =
- 34.47 + 8 =
- 35.Best estimate of 46 × 80? (a) 4000 (b) 40000 (c) 400
- 36.50% of ₹170 =
- 37.47 + 4 =
- 38.254 + 99 =
- 39.49 + 4 =
- 40.89 + 59 =
Answer key
- 81
- 361
- 35
- 84
- 68
- 82
- 140
- 48
- 39
- 484
- 441
- 48
- 500
- 23
- 50
- 153
- 2700
- 900
- 55
- 84
- 53
- 94
- 95
- 65
- 60
- 65
- 51
- 17
- 244
- 6
- 14
- 289
- 14
- 55
- 4000
- 85
- 51
- 353
- 53
- 148
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths