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
- 1.54 − 39 =
- 2.66 − 31 =
- 3.85 − 21 =
- 4.71 − 42 =
- 5.56 − 12 =
- 6.78 − 21 =
- 7.59 − 21 =
- 8.53 − 39 =
- 9.66 − 39 =
- 10.77 − 12 =
- 11.53 − 23 =
- 12.98 − 64 =
- 13.80 − 34 =
- 14.59 − 31 =
- 15.86 − 66 =
- 16.85 − 32 =
- 17.94 − 18 =
- 18.68 − 21 =
- 19.82 − 49 =
- 20.97 − 21 =
- 21.97 − 79 =
- 22.67 − 57 =
- 23.65 − 51 =
- 24.68 − 17 =
- 25.90 − 55 =
- 26.76 − 61 =
- 27.55 − 15 =
- 28.77 − 66 =
- 29.86 − 18 =
- 30.87 − 45 =
- 31.57 − 23 =
- 32.77 − 31 =
- 33.94 − 69 =
- 34.99 − 63 =
- 35.59 − 48 =
- 36.97 − 71 =
- 37.62 − 37 =
- 38.85 − 57 =
- 39.67 − 36 =
- 40.53 − 32 =
Answer key
- 15
- 35
- 64
- 29
- 44
- 57
- 38
- 14
- 27
- 65
- 30
- 34
- 46
- 28
- 20
- 53
- 76
- 47
- 33
- 76
- 18
- 10
- 14
- 51
- 35
- 15
- 40
- 11
- 68
- 42
- 34
- 46
- 25
- 36
- 11
- 26
- 25
- 28
- 31
- 21
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths