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
- 1.60 − 31 =
- 2.88 − 75 =
- 3.78 − 51 =
- 4.82 − 17 =
- 5.75 − 37 =
- 6.75 − 17 =
- 7.67 − 19 =
- 8.82 − 38 =
- 9.59 − 17 =
- 10.59 − 21 =
- 11.83 − 44 =
- 12.77 − 14 =
- 13.59 − 19 =
- 14.53 − 39 =
- 15.88 − 64 =
- 16.67 − 18 =
- 17.69 − 52 =
- 18.75 − 61 =
- 19.59 − 18 =
- 20.65 − 42 =
- 21.68 − 32 =
- 22.97 − 66 =
- 23.96 − 85 =
- 24.80 − 21 =
- 25.59 − 43 =
- 26.85 − 12 =
- 27.90 − 74 =
- 28.64 − 23 =
- 29.61 − 48 =
- 30.61 − 35 =
- 31.76 − 63 =
- 32.61 − 23 =
- 33.69 − 31 =
- 34.66 − 28 =
- 35.52 − 14 =
- 36.88 − 71 =
- 37.82 − 68 =
- 38.79 − 31 =
- 39.61 − 49 =
- 40.86 − 35 =
Answer key
- 29
- 13
- 27
- 65
- 38
- 58
- 48
- 44
- 42
- 38
- 39
- 63
- 40
- 14
- 24
- 49
- 17
- 14
- 41
- 23
- 36
- 31
- 11
- 59
- 16
- 73
- 16
- 41
- 13
- 26
- 13
- 38
- 38
- 38
- 38
- 17
- 14
- 48
- 12
- 51
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths