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
- 1.182 − 99 =
- 2.392 ÷ 4 =
- 3.10% of ₹850 =
- 4.21² =
- 5.92 ÷ 4 =
- 6.1022 − 996 =
- 7.5% of ₹90 =
- 8.You buy a cricket ball for ₹436 and pay with a ₹500 note. How much change do you get, in rupees?
- 9.You buy a box of crayons for ₹88 and pay with a ₹100 note. How much change do you get, in rupees?
- 10.31 + 9 =
- 11.176 ÷ 4 =
- 12.Best estimate of 46 × 93? (a) 45000 (b) 450 (c) 4500
- 13.25% of ₹60 =
- 14.508 − 497 =
- 15.784 + 99 =
- 16.264 ÷ 8 =
- 17.A train leaves at 2:05 and reaches the next city at 2:45. How many minutes is the journey?
- 18.16 + 5 =
- 19.Double 26 =
- 20.561 − 99 =
- 21.49 + 7 =
- 22.You buy a notebook for ₹119 and pay with a ₹500 note. How much change do you get, in rupees?
- 23.33 × 5 =
- 24.18 × 4 =
- 25.What is the remainder when 51 is divided by 4?
- 26.29 + 3 =
- 27.You start your homework at 4:10 and finish at 6:40. How many minutes did you work?
- 28.What is the remainder when 66 is divided by 8?
- 29.Best estimate of 152 + 672? (a) 700 (b) 900 (c) 1100
- 30.17² =
- 31.42 × 9 =
- 32.7 + 8 =
- 33.What is the remainder when 86 is divided by 8?
- 34.Best estimate of 307 + 182? (a) 700 (b) 500 (c) 300
- 35.A film starts at 6:35 and ends at 8:40. How many minutes long is the film?
- 36.12 + 9 =
- 37.Best estimate of 205 + 327? (a) 700 (b) 500 (c) 300
- 38.16 × 4 =
- 39.Best estimate of 859 + 717? (a) 1400 (b) 1800 (c) 1600
- 40.Half of 130 =
Answer key
- 83
- 98
- 85
- 441
- 23
- 26
- 4.5
- 64
- 12
- 40
- 44
- 4500
- 15
- 11
- 883
- 33
- 40
- 21
- 52
- 462
- 56
- 381
- 165
- 72
- 3
- 32
- 150
- 2
- 900
- 289
- 378
- 15
- 6
- 500
- 125
- 21
- 500
- 64
- 1600
- 65
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths