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
- 1.49 × 4 =
- 2.63 − 39 =
- 3.56 + 8 =
- 4.522 − 484 =
- 5.9 + 11 =
- 6.395 ÷ 5 =
- 7.78 + ? = 100
- 8.257 − 99 =
- 9.91 − 29 =
- 10.You buy a kite for ₹389 and pay with a ₹500 note. How much change do you get, in rupees?
- 11.34 × 8 =
- 12.534 − 99 =
- 13.What is the remainder when 22 is divided by 5?
- 14.21 + 29 =
- 15.148 ÷ 4 =
- 16.54 + 31 =
- 17.72 − 62 =
- 18.6 + 7 =
- 19.31 × 7 =
- 20.28 + 30 =
- 21.5% of ₹420 =
- 22.You buy a notebook for ₹134 and pay with a ₹500 note. How much change do you get, in rupees?
- 23.2 + ? = 10
- 24.22 − 9 =
- 25.97 − 64 =
- 26.A film starts at 2:30 and ends at 4:15. How many minutes long is the film?
- 27.Best estimate of 827 + 457? (a) 1300 (b) 1500 (c) 1100
- 28.21 + 61 =
- 29.A film starts at 2:45 and ends at 4:25. How many minutes long is the film?
- 30.120 ÷ 8 =
- 31.10% of ₹380 =
- 32.51 + 29 =
- 33.30 + 19 =
- 34.144 ÷ 4 =
- 35.Best estimate of 302 + 632? (a) 1100 (b) 700 (c) 900
- 36.21² =
- 37.Best estimate of 58 × 52? (a) 3000 (b) 30000 (c) 300
- 38.Best estimate of 371 + 403? (a) 1000 (b) 800 (c) 600
- 39.Best estimate of 31 × 31? (a) 900 (b) 90 (c) 9000
- 40.14² =
Answer key
- 196
- 24
- 64
- 38
- 20
- 79
- 22
- 158
- 62
- 111
- 272
- 435
- 2
- 50
- 37
- 85
- 10
- 13
- 217
- 58
- 21
- 366
- 8
- 13
- 33
- 105
- 1300
- 82
- 100
- 15
- 38
- 80
- 49
- 36
- 900
- 441
- 3000
- 800
- 900
- 196
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths