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
- 1.1014 − 985 =
- 2.22 + 23 =
- 3.88 − 41 =
- 4.27² =
- 5.79 + 29 =
- 6.9 + ? = 10
- 7.14 + ? = 100
- 8.4 + ? = 10
- 9.You buy a water bottle for ₹21 and a pen for ₹20. You pay with a ₹100 note. How much change do you get, in rupees?
- 10.72 − 39 =
- 11.38 laddoos are packed in boxes of 9. How many laddoos are left over?
- 12.15 + 14 =
- 13.224 ÷ 8 =
- 14.168 ÷ 8 =
- 15.76 + 64 =
- 16.29² =
- 17.405 ÷ 5 =
- 18.147 ÷ 7 =
- 19.99 − 58 =
- 20.13² =
- 21.15² =
- 22.Half of 44 =
- 23.Double 62 =
- 24.Best estimate of 601 + 788? (a) 1400 (b) 1200 (c) 1600
- 25.30 + 29 =
- 26.Best estimate of 52 × 36? (a) 2000 (b) 200 (c) 20000
- 27.99 laddoos are packed in boxes of 7. How many laddoos are left over?
- 28.You buy a storybook for ₹24 and pay with a ₹100 note. How much change do you get, in rupees?
- 29.You buy a cricket ball for ₹22 and pay with a ₹100 note. How much change do you get, in rupees?
- 30.134 + 99 =
- 31.88 + 67 =
- 32.46 + 6 =
- 33.48 + 7 =
- 34.25% of ₹460 =
- 35.72 − 61 =
- 36.You buy a storybook for ₹40 and a pen for ₹37. You pay with a ₹100 note. How much change do you get, in rupees?
- 37.51 + ? = 100
- 38.67 laddoos are packed in boxes of 9. How many laddoos are left over?
- 39.54 × 3 =
- 40.176 ÷ 8 =
Answer key
- 29
- 45
- 47
- 729
- 108
- 1
- 86
- 6
- 59
- 33
- 2
- 29
- 28
- 21
- 140
- 841
- 81
- 21
- 41
- 169
- 225
- 22
- 124
- 1400
- 59
- 2000
- 1
- 76
- 78
- 233
- 155
- 52
- 55
- 115
- 11
- 23
- 49
- 4
- 162
- 22
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths