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
- 1.56 − 42 =
- 2.54 − 23 =
- 3.94 − 17 =
- 4.91 − 72 =
- 5.92 − 64 =
- 6.86 − 32 =
- 7.91 − 33 =
- 8.88 − 23 =
- 9.72 − 29 =
- 10.82 − 37 =
- 11.57 − 21 =
- 12.63 − 42 =
- 13.92 − 28 =
- 14.65 − 32 =
- 15.85 − 71 =
- 16.64 − 54 =
- 17.58 − 18 =
- 18.75 − 56 =
- 19.66 − 19 =
- 20.66 − 53 =
- 21.82 − 64 =
- 22.87 − 66 =
- 23.63 − 37 =
- 24.81 − 69 =
- 25.96 − 84 =
- 26.63 − 44 =
- 27.85 − 52 =
- 28.79 − 21 =
- 29.74 − 28 =
- 30.96 − 24 =
- 31.71 − 29 =
- 32.89 − 18 =
- 33.60 − 16 =
- 34.68 − 22 =
- 35.54 − 37 =
- 36.91 − 51 =
- 37.67 − 36 =
- 38.57 − 26 =
- 39.95 − 18 =
- 40.57 − 41 =
Answer key
- 14
- 31
- 77
- 19
- 28
- 54
- 58
- 65
- 43
- 45
- 36
- 21
- 64
- 33
- 14
- 10
- 40
- 19
- 47
- 13
- 18
- 21
- 26
- 12
- 12
- 19
- 33
- 58
- 46
- 72
- 42
- 71
- 44
- 46
- 17
- 40
- 31
- 31
- 77
- 16
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths