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.You start your homework at 3:05 and finish at 4:05. How many minutes did you work?
- 2.109 laddoos are packed in boxes of 9. How many laddoos are left over?
- 3.69 + 9 =
- 4.8 + 9 =
- 5.39 × 4 =
- 6.99 − 60 =
- 7.Double 56 =
- 8.26 × 8 =
- 9.552 ÷ 6 =
- 10.9 + 10 =
- 11.Half of 156 =
- 12.You buy a water bottle for ₹21 and a pen for ₹27. You pay with a ₹100 note. How much change do you get, in rupees?
- 13.9 + 8 =
- 14.154 ÷ 7 =
- 15.You buy a box of crayons for ₹44 and a pen for ₹17. You pay with a ₹100 note. How much change do you get, in rupees?
- 16.50% of ₹850 =
- 17.85 + 9 =
- 18.Best estimate of 612 + 617? (a) 1400 (b) 1200 (c) 1000
- 19.30 + 32 =
- 20.80 + 19 =
- 21.20 + 29 =
- 22.203 − 188 =
- 23.Half of 36 =
- 24.74 − 35 =
- 25.31 + 57 =
- 26.What is the remainder when 46 is divided by 8?
- 27.17 + 19 =
- 28.59 + 72 =
- 29.Double 61 =
- 30.Best estimate of 795 + 794? (a) 1400 (b) 1600 (c) 1800
- 31.Best estimate of 537 + 619? (a) 900 (b) 1100 (c) 1300
- 32.18² =
- 33.502 − 496 =
- 34.10 + 11 =
- 35.67 children stand in rows of 9. How many full rows can they make?
- 36.320 − 297 =
- 37.160 ÷ 8 =
- 38.18 × 8 =
- 39.8 + 4 =
- 40.20 + 19 =
Answer key
- 60
- 1
- 78
- 17
- 156
- 39
- 112
- 208
- 92
- 19
- 78
- 52
- 17
- 22
- 39
- 425
- 94
- 1200
- 62
- 99
- 49
- 15
- 18
- 39
- 88
- 6
- 36
- 131
- 122
- 1600
- 1100
- 324
- 6
- 21
- 7
- 23
- 20
- 144
- 12
- 39
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths