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
- 1.71 − 24 =
- 2.71 − 46 =
- 3.54 + 45 =
- 4.You buy a bag of mangoes for ₹15 and a pen for ₹16. You pay with a ₹100 note. How much change do you get, in rupees?
- 5.17 + 19 =
- 6.94 × 4 =
- 7.75 × 6 =
- 8.Best estimate of 30 × 58? (a) 18000 (b) 180 (c) 1800
- 9.17 + 4 =
- 10.184 ÷ 4 =
- 11.110 − 90 =
- 12.39 + 7 =
- 13.Best estimate of 276 + 185? (a) 300 (b) 500 (c) 700
- 14.96 × 8 =
- 15.510 − 494 =
- 16.45 − 19 =
- 17.12² =
- 18.852 − 99 =
- 19.83 × 3 =
- 20.18 × 8 =
- 21.10% of ₹550 =
- 22.You start your homework at 1:55 and finish at 2:25. How many minutes did you work?
- 23.1 + ? = 10
- 24.73 + 71 =
- 25.Double 85 =
- 26.84 ÷ 6 =
- 27.What is the remainder when 36 is divided by 5?
- 28.Best estimate of 73 × 81? (a) 56000 (b) 5600 (c) 560
- 29.22² =
- 30.20 × 8 =
- 31.6 + ? = 10
- 32.77 children stand in rows of 5. How many full rows can they make?
- 33.9 + 10 =
- 34.81 laddoos are packed in boxes of 8. How many laddoos are left over?
- 35.88 + 5 =
- 36.57 + 19 =
- 37.684 + 99 =
- 38.223 − 179 =
- 39.26 + 7 =
- 40.47 + 81 =
Answer key
- 47
- 25
- 99
- 69
- 36
- 376
- 450
- 1800
- 21
- 46
- 20
- 46
- 500
- 768
- 16
- 26
- 144
- 753
- 249
- 144
- 55
- 30
- 9
- 144
- 170
- 14
- 1
- 5600
- 484
- 160
- 4
- 15
- 19
- 1
- 93
- 76
- 783
- 44
- 33
- 128
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths