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
- 1.61 × 3 =
- 2.62 + ? = 100
- 3.85 + ? = 100
- 4.64 ÷ 4 =
- 5.36 + 71 =
- 6.Double 26 =
- 7.Best estimate of 257 + 189? (a) 300 (b) 700 (c) 500
- 8.29 + ? = 100
- 9.216 ÷ 8 =
- 10.81 − 69 =
- 11.102 ÷ 3 =
- 12.62 × 4 =
- 13.25% of ₹450 =
- 14.311 − 278 =
- 15.21 + 22 =
- 16.16 × 4 =
- 17.101 children stand in rows of 8. How many full rows can they make?
- 18.26² =
- 19.65 + 9 =
- 20.75 − 19 =
- 21.312 − 280 =
- 22.39 + 9 =
- 23.10% of ₹750 =
- 24.8 + 7 =
- 25.A film starts at 7:00 and ends at 9:55. How many minutes long is the film?
- 26.88 + 7 =
- 27.10% of ₹470 =
- 28.51 + ? = 100
- 29.A cricket match starts at 5:40 and the first innings ends at 7:40. How many minutes did the innings last?
- 30.64 children stand in rows of 7. How many full rows can they make?
- 31.12 + 13 =
- 32.Half of 102 =
- 33.30 + 29 =
- 34.A cricket match starts at 7:45 and the first innings ends at 10:00. How many minutes did the innings last?
- 35.79 laddoos are packed in boxes of 7. How many laddoos are left over?
- 36.23 laddoos are packed in boxes of 3. How many laddoos are left over?
- 37.71 + 9 =
- 38.208 ÷ 8 =
- 39.48 − 9 =
- 40.21² =
Answer key
- 183
- 38
- 15
- 16
- 107
- 52
- 500
- 71
- 27
- 12
- 34
- 248
- 112.5
- 33
- 43
- 64
- 12
- 676
- 74
- 56
- 32
- 48
- 75
- 15
- 175
- 95
- 47
- 49
- 120
- 9
- 25
- 51
- 59
- 135
- 2
- 2
- 80
- 26
- 39
- 441
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths