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
- 1.19 + 8 =
- 2.26 + 28 =
- 3.144 ÷ 8 =
- 4.25% of ₹860 =
- 5.Best estimate of 73 × 77? (a) 5600 (b) 560 (c) 56000
- 6.Double 41 =
- 7.Best estimate of 227 + 516? (a) 500 (b) 900 (c) 700
- 8.3 + ? = 10
- 9.129 laddoos are packed in boxes of 9. How many laddoos are left over?
- 10.19 × 8 =
- 11.27 + 25 =
- 12.477 + 99 =
- 13.83 − 65 =
- 14.253 + 99 =
- 15.306 ÷ 9 =
- 16.47 + ? = 100
- 17.69 + 3 =
- 18.16² =
- 19.66 + 7 =
- 20.24 + 33 =
- 21.107 − 75 =
- 22.11 + 12 =
- 23.50% of ₹600 =
- 24.39 laddoos are packed in boxes of 6. How many laddoos are left over?
- 25.A cricket match starts at 6:50 and the first innings ends at 9:25. How many minutes did the innings last?
- 26.243 ÷ 3 =
- 27.99 ÷ 3 =
- 28.38 + 6 =
- 29.Best estimate of 830 + 866? (a) 1900 (b) 1700 (c) 1500
- 30.22 + 21 =
- 31.26 × 4 =
- 32.240 ÷ 8 =
- 33.53 − 12 =
- 34.66 − 45 =
- 35.Best estimate of 39 × 84? (a) 32000 (b) 3200 (c) 320
- 36.23 × 3 =
- 37.511 ÷ 7 =
- 38.You buy a box of crayons for ₹39 and a pen for ₹44. You pay with a ₹100 note. How much change do you get, in rupees?
- 39.67 + 4 =
- 40.2 + ? = 10
Answer key
- 27
- 54
- 18
- 215
- 5600
- 82
- 700
- 7
- 3
- 152
- 52
- 576
- 18
- 352
- 34
- 53
- 72
- 256
- 73
- 57
- 32
- 23
- 300
- 3
- 155
- 81
- 33
- 44
- 1700
- 43
- 104
- 30
- 41
- 21
- 3200
- 69
- 73
- 17
- 71
- 8
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths