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
- 1.10% of ₹410 =
- 2.103 − 87 =
- 3.A cricket match starts at 3:15 and the first innings ends at 6:10. How many minutes did the innings last?
- 4.29 + 30 =
- 5.88 + 54 =
- 6.1 + ? = 10
- 7.Best estimate of 124 + 579? (a) 900 (b) 500 (c) 700
- 8.24 × 8 =
- 9.13 × 8 =
- 10.What is the remainder when 55 is divided by 4?
- 11.23 + 22 =
- 12.71 × 4 =
- 13.10% of ₹390 =
- 14.72 − 24 =
- 15.16 + 19 =
- 16.56 + 78 =
- 17.39 + 61 =
- 18.10% of ₹360 =
- 19.48 + 7 =
- 20.21² =
- 21.76 + 6 =
- 22.75 − 29 =
- 23.Best estimate of 172 + 285? (a) 500 (b) 700 (c) 300
- 24.Double 56 =
- 25.Best estimate of 34 × 17? (a) 600 (b) 6000 (c) 60
- 26.10% of ₹110 =
- 27.74 + 9 =
- 28.23² =
- 29.A cricket match starts at 5:05 and the first innings ends at 5:30. How many minutes did the innings last?
- 30.Best estimate of 519 + 427? (a) 700 (b) 1100 (c) 900
- 31.318 − 281 =
- 32.208 ÷ 8 =
- 33.25 + 9 =
- 34.5% of ₹710 =
- 35.51 + 12 =
- 36.464 + 99 =
- 37.A cricket match starts at 4:50 and the first innings ends at 6:10. How many minutes did the innings last?
- 38.66 + ? = 100
- 39.74 + 74 =
- 40.15 + 17 =
Answer key
- 41
- 16
- 175
- 59
- 142
- 9
- 700
- 192
- 104
- 3
- 45
- 284
- 39
- 48
- 35
- 134
- 100
- 36
- 55
- 441
- 82
- 46
- 500
- 112
- 600
- 11
- 83
- 529
- 25
- 900
- 37
- 26
- 34
- 35.5
- 63
- 563
- 80
- 34
- 148
- 32
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths