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
- 1.62 − 33 =
- 2.69 − 27 =
- 3.87 − 34 =
- 4.67 − 49 =
- 5.96 − 27 =
- 6.65 − 17 =
- 7.57 − 15 =
- 8.84 − 67 =
- 9.96 − 47 =
- 10.83 − 38 =
- 11.93 − 25 =
- 12.72 − 21 =
- 13.89 − 21 =
- 14.57 − 16 =
- 15.53 − 43 =
- 16.99 − 89 =
- 17.69 − 14 =
- 18.92 − 49 =
- 19.61 − 15 =
- 20.69 − 39 =
- 21.62 − 42 =
- 22.53 − 27 =
- 23.94 − 61 =
- 24.87 − 62 =
- 25.74 − 35 =
- 26.79 − 64 =
- 27.82 − 33 =
- 28.54 − 21 =
- 29.65 − 27 =
- 30.82 − 19 =
- 31.83 − 12 =
- 32.74 − 51 =
- 33.62 − 34 =
- 34.86 − 21 =
- 35.58 − 17 =
- 36.85 − 45 =
- 37.93 − 83 =
- 38.86 − 15 =
- 39.76 − 27 =
- 40.62 − 52 =
Answer key
- 29
- 42
- 53
- 18
- 69
- 48
- 42
- 17
- 49
- 45
- 68
- 51
- 68
- 41
- 10
- 10
- 55
- 43
- 46
- 30
- 20
- 26
- 33
- 25
- 39
- 15
- 49
- 33
- 38
- 63
- 71
- 23
- 28
- 65
- 41
- 40
- 10
- 71
- 49
- 10
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths