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
- 1.72 − 21 =
- 2.79 − 41 =
- 3.55 − 27 =
- 4.56 − 26 =
- 5.99 − 12 =
- 6.88 − 67 =
- 7.64 − 13 =
- 8.56 − 31 =
- 9.57 − 21 =
- 10.54 − 24 =
- 11.78 − 14 =
- 12.83 − 16 =
- 13.93 − 67 =
- 14.90 − 47 =
- 15.84 − 39 =
- 16.64 − 23 =
- 17.54 − 31 =
- 18.56 − 38 =
- 19.55 − 37 =
- 20.79 − 45 =
- 21.78 − 43 =
- 22.57 − 16 =
- 23.60 − 36 =
- 24.72 − 61 =
- 25.88 − 36 =
- 26.55 − 23 =
- 27.74 − 27 =
- 28.59 − 37 =
- 29.89 − 48 =
- 30.63 − 18 =
- 31.88 − 68 =
- 32.84 − 21 =
- 33.68 − 22 =
- 34.66 − 43 =
- 35.54 − 19 =
- 36.87 − 33 =
- 37.59 − 12 =
- 38.62 − 33 =
- 39.53 − 35 =
- 40.93 − 83 =
Answer key
- 51
- 38
- 28
- 30
- 87
- 21
- 51
- 25
- 36
- 30
- 64
- 67
- 26
- 43
- 45
- 41
- 23
- 18
- 18
- 34
- 35
- 41
- 24
- 11
- 52
- 32
- 47
- 22
- 41
- 45
- 20
- 63
- 46
- 23
- 35
- 54
- 47
- 29
- 18
- 10
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths