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
- 1.24 × 3 =
- 2.129 − 79 =
- 3.68 × 4 =
- 4.25 + 27 =
- 5.Half of 56 =
- 6.34 + 21 =
- 7.A film starts at 6:40 and ends at 9:40. How many minutes long is the film?
- 8.You buy a cricket ball for ₹60 and pay with a ₹100 note. How much change do you get, in rupees?
- 9.512 − 479 =
- 10.59 − 12 =
- 11.What is the remainder when 143 is divided by 9?
- 12.92 ÷ 4 =
- 13.You start your homework at 2:35 and finish at 5:45. How many minutes did you work?
- 14.24 + 23 =
- 15.18 + 17 =
- 16.70 + 44 =
- 17.78 + ? = 100
- 18.25 + 19 =
- 19.440 ÷ 8 =
- 20.Best estimate of 313 + 617? (a) 1100 (b) 900 (c) 700
- 21.107 − 61 =
- 22.27 + 52 =
- 23.78 + 3 =
- 24.77 × 3 =
- 25.12 × 6 =
- 26.50% of ₹270 =
- 27.25² =
- 28.66 laddoos are packed in boxes of 7. How many laddoos are left over?
- 29.14² =
- 30.8 + 9 =
- 31.You buy a notebook for ₹59 and pay with a ₹100 note. How much change do you get, in rupees?
- 32.48 + 29 =
- 33.10% of ₹710 =
- 34.28² =
- 35.63 × 9 =
- 36.Best estimate of 209 + 126? (a) 300 (b) 500 (c) 100
- 37.57 laddoos are packed in boxes of 8. How many laddoos are left over?
- 38.16 × 8 =
- 39.37 laddoos are packed in boxes of 3. How many laddoos are left over?
- 40.68 + 9 =
Answer key
- 72
- 50
- 272
- 52
- 28
- 55
- 180
- 40
- 33
- 47
- 8
- 23
- 190
- 47
- 35
- 114
- 22
- 44
- 55
- 900
- 46
- 79
- 81
- 231
- 72
- 135
- 625
- 3
- 196
- 17
- 41
- 77
- 71
- 784
- 567
- 300
- 1
- 128
- 1
- 77
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths