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
- 1.78 − 21 =
- 2.53 − 41 =
- 3.82 − 67 =
- 4.89 − 57 =
- 5.73 − 18 =
- 6.88 − 77 =
- 7.58 − 43 =
- 8.99 − 79 =
- 9.73 − 24 =
- 10.74 − 51 =
- 11.73 − 37 =
- 12.82 − 38 =
- 13.90 − 24 =
- 14.60 − 43 =
- 15.72 − 15 =
- 16.94 − 22 =
- 17.94 − 59 =
- 18.91 − 41 =
- 19.73 − 48 =
- 20.90 − 19 =
- 21.73 − 33 =
- 22.98 − 23 =
- 23.57 − 19 =
- 24.68 − 52 =
- 25.72 − 61 =
- 26.82 − 31 =
- 27.63 − 51 =
- 28.82 − 64 =
- 29.64 − 21 =
- 30.59 − 14 =
- 31.95 − 17 =
- 32.87 − 64 =
- 33.59 − 31 =
- 34.97 − 45 =
- 35.89 − 74 =
- 36.91 − 54 =
- 37.89 − 78 =
- 38.89 − 26 =
- 39.71 − 44 =
- 40.93 − 18 =
Answer key
- 57
- 12
- 15
- 32
- 55
- 11
- 15
- 20
- 49
- 23
- 36
- 44
- 66
- 17
- 57
- 72
- 35
- 50
- 25
- 71
- 40
- 75
- 38
- 16
- 11
- 51
- 12
- 18
- 43
- 45
- 78
- 23
- 28
- 52
- 15
- 37
- 11
- 63
- 27
- 75
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths