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
- 1.78 − 21 =
- 2.57 − 35 =
- 3.79 − 13 =
- 4.83 − 71 =
- 5.97 − 41 =
- 6.83 − 59 =
- 7.62 − 25 =
- 8.91 − 36 =
- 9.65 − 14 =
- 10.58 − 27 =
- 11.96 − 21 =
- 12.83 − 65 =
- 13.92 − 56 =
- 14.72 − 45 =
- 15.83 − 31 =
- 16.56 − 46 =
- 17.82 − 51 =
- 18.75 − 18 =
- 19.77 − 42 =
- 20.92 − 29 =
- 21.59 − 21 =
- 22.62 − 45 =
- 23.71 − 56 =
- 24.74 − 45 =
- 25.78 − 33 =
- 26.63 − 32 =
- 27.87 − 17 =
- 28.76 − 15 =
- 29.56 − 22 =
- 30.60 − 23 =
- 31.69 − 35 =
- 32.97 − 81 =
- 33.57 − 19 =
- 34.73 − 61 =
- 35.96 − 71 =
- 36.54 − 27 =
- 37.97 − 35 =
- 38.62 − 51 =
- 39.89 − 66 =
- 40.56 − 36 =
Answer key
- 57
- 22
- 66
- 12
- 56
- 24
- 37
- 55
- 51
- 31
- 75
- 18
- 36
- 27
- 52
- 10
- 31
- 57
- 35
- 63
- 38
- 17
- 15
- 29
- 45
- 31
- 70
- 61
- 34
- 37
- 34
- 16
- 38
- 12
- 25
- 27
- 62
- 11
- 23
- 20
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths