Mental Subtraction Worksheet for Class 2 and 3
How to do it in your head (Tens first): Keep the first number as it is. Take away the tens of the second number. Take away the ones (bridge back through a ten if you need to).
NameDateTime takenScore ___ / 40
- 1.81 − 71 =
- 2.57 − 47 =
- 3.54 − 31 =
- 4.53 − 35 =
- 5.91 − 79 =
- 6.70 − 21 =
- 7.99 − 14 =
- 8.56 − 16 =
- 9.84 − 31 =
- 10.68 − 48 =
- 11.76 − 26 =
- 12.56 − 41 =
- 13.92 − 22 =
- 14.52 − 31 =
- 15.84 − 27 =
- 16.52 − 12 =
- 17.98 − 46 =
- 18.96 − 31 =
- 19.57 − 27 =
- 20.82 − 52 =
- 21.55 − 29 =
- 22.98 − 58 =
- 23.69 − 58 =
- 24.91 − 53 =
- 25.71 − 32 =
- 26.76 − 21 =
- 27.91 − 55 =
- 28.98 − 26 =
- 29.59 − 31 =
- 30.85 − 17 =
- 31.55 − 21 =
- 32.86 − 28 =
- 33.52 − 16 =
- 34.96 − 47 =
- 35.95 − 57 =
- 36.72 − 24 =
- 37.65 − 42 =
- 38.54 − 34 =
- 39.74 − 53 =
- 40.76 − 61 =
Answer key
- 10
- 10
- 23
- 18
- 12
- 49
- 85
- 40
- 53
- 20
- 50
- 15
- 70
- 21
- 57
- 40
- 52
- 65
- 30
- 30
- 26
- 40
- 11
- 38
- 39
- 55
- 36
- 72
- 28
- 68
- 34
- 58
- 36
- 49
- 38
- 48
- 23
- 20
- 21
- 15
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths