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
- 1.15 + 8 =
- 2.46 laddoos are packed in boxes of 9. How many laddoos are left over?
- 3.236 ÷ 4 =
- 4.110 ÷ 5 =
- 5.You buy a kite for ₹350 and pay with a ₹500 note. How much change do you get, in rupees?
- 6.36 × 8 =
- 7.82 × 4 =
- 8.19 + 9 =
- 9.51 + 17 =
- 10.79 × 3 =
- 11.18² =
- 12.103 − 71 =
- 13.656 ÷ 8 =
- 14.Half of 90 =
- 15.15 + 9 =
- 16.302 − 277 =
- 17.50% of ₹50 =
- 18.Best estimate of 41 × 74? (a) 2800 (b) 28000 (c) 280
- 19.28² =
- 20.25% of ₹210 =
- 21.64 ÷ 4 =
- 22.53 − 18 =
- 23.351 ÷ 9 =
- 24.21 + 23 =
- 25.Best estimate of 270 + 658? (a) 1200 (b) 800 (c) 1000
- 26.25% of ₹120 =
- 27.What is the remainder when 62 is divided by 6?
- 28.218 − 192 =
- 29.80 − 28 =
- 30.53 + ? = 100
- 31.Double 49 =
- 32.14 + ? = 100
- 33.You start your homework at 7:10 and finish at 8:05. How many minutes did you work?
- 34.29² =
- 35.Best estimate of 56 × 79? (a) 4800 (b) 48000 (c) 480
- 36.Best estimate of 70 × 36? (a) 280 (b) 28000 (c) 2800
- 37.136 ÷ 8 =
- 38.7 + ? = 10
- 39.512 − 486 =
- 40.Best estimate of 52 × 83? (a) 4000 (b) 400 (c) 40000
Answer key
- 23
- 1
- 59
- 22
- 150
- 288
- 328
- 28
- 68
- 237
- 324
- 32
- 82
- 45
- 24
- 25
- 25
- 2800
- 784
- 52.5
- 16
- 35
- 39
- 44
- 1000
- 30
- 2
- 26
- 52
- 47
- 98
- 86
- 55
- 841
- 4800
- 2800
- 17
- 3
- 26
- 4000
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths