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
- 1.95 − 21 =
- 2.75 − 43 =
- 3.65 − 22 =
- 4.88 − 51 =
- 5.59 − 43 =
- 6.60 − 24 =
- 7.96 − 15 =
- 8.95 − 69 =
- 9.71 − 51 =
- 10.57 − 34 =
- 11.58 − 19 =
- 12.86 − 48 =
- 13.78 − 67 =
- 14.64 − 27 =
- 15.92 − 48 =
- 16.63 − 12 =
- 17.78 − 18 =
- 18.60 − 25 =
- 19.53 − 39 =
- 20.85 − 16 =
- 21.89 − 39 =
- 22.53 − 43 =
- 23.75 − 23 =
- 24.53 − 18 =
- 25.96 − 66 =
- 26.83 − 12 =
- 27.98 − 53 =
- 28.52 − 21 =
- 29.91 − 42 =
- 30.62 − 32 =
- 31.69 − 35 =
- 32.89 − 45 =
- 33.62 − 46 =
- 34.92 − 65 =
- 35.53 − 41 =
- 36.79 − 25 =
- 37.91 − 81 =
- 38.53 − 42 =
- 39.86 − 59 =
- 40.68 − 52 =
Answer key
- 74
- 32
- 43
- 37
- 16
- 36
- 81
- 26
- 20
- 23
- 39
- 38
- 11
- 37
- 44
- 51
- 60
- 35
- 14
- 69
- 50
- 10
- 52
- 35
- 30
- 71
- 45
- 31
- 49
- 30
- 34
- 44
- 16
- 27
- 12
- 54
- 10
- 11
- 27
- 16
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths