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
- 1.55 − 17 =
- 2.66 − 52 =
- 3.74 − 63 =
- 4.69 − 41 =
- 5.65 − 38 =
- 6.93 − 53 =
- 7.91 − 19 =
- 8.55 − 31 =
- 9.88 − 56 =
- 10.88 − 14 =
- 11.61 − 51 =
- 12.92 − 72 =
- 13.81 − 65 =
- 14.58 − 21 =
- 15.59 − 48 =
- 16.88 − 57 =
- 17.90 − 46 =
- 18.56 − 21 =
- 19.96 − 54 =
- 20.54 − 21 =
- 21.70 − 59 =
- 22.95 − 51 =
- 23.59 − 29 =
- 24.61 − 35 =
- 25.99 − 29 =
- 26.63 − 47 =
- 27.71 − 17 =
- 28.61 − 37 =
- 29.54 − 33 =
- 30.79 − 52 =
- 31.70 − 54 =
- 32.54 − 15 =
- 33.59 − 31 =
- 34.68 − 48 =
- 35.98 − 83 =
- 36.53 − 39 =
- 37.66 − 51 =
- 38.95 − 68 =
- 39.59 − 21 =
- 40.95 − 66 =
Answer key
- 38
- 14
- 11
- 28
- 27
- 40
- 72
- 24
- 32
- 74
- 10
- 20
- 16
- 37
- 11
- 31
- 44
- 35
- 42
- 33
- 11
- 44
- 30
- 26
- 70
- 16
- 54
- 24
- 21
- 27
- 16
- 39
- 28
- 20
- 15
- 14
- 15
- 27
- 38
- 29
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths