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
- 1.86 − 69 =
- 2.99 − 31 =
- 3.80 − 35 =
- 4.57 − 15 =
- 5.97 − 27 =
- 6.75 − 45 =
- 7.80 − 67 =
- 8.87 − 74 =
- 9.72 − 25 =
- 10.57 − 18 =
- 11.82 − 21 =
- 12.78 − 34 =
- 13.78 − 35 =
- 14.56 − 26 =
- 15.86 − 25 =
- 16.65 − 21 =
- 17.71 − 18 =
- 18.89 − 59 =
- 19.69 − 26 =
- 20.55 − 23 =
- 21.76 − 28 =
- 22.62 − 23 =
- 23.93 − 76 =
- 24.57 − 32 =
- 25.85 − 44 =
- 26.77 − 33 =
- 27.57 − 17 =
- 28.74 − 61 =
- 29.90 − 61 =
- 30.61 − 49 =
- 31.81 − 61 =
- 32.89 − 54 =
- 33.61 − 31 =
- 34.73 − 41 =
- 35.60 − 41 =
- 36.73 − 44 =
- 37.96 − 28 =
- 38.91 − 81 =
- 39.78 − 51 =
- 40.64 − 13 =
Answer key
- 17
- 68
- 45
- 42
- 70
- 30
- 13
- 13
- 47
- 39
- 61
- 44
- 43
- 30
- 61
- 44
- 53
- 30
- 43
- 32
- 48
- 39
- 17
- 25
- 41
- 44
- 40
- 13
- 29
- 12
- 20
- 35
- 30
- 32
- 19
- 29
- 68
- 10
- 27
- 51
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths