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
- 1.67 − 21 =
- 2.68 − 41 =
- 3.85 − 19 =
- 4.81 − 59 =
- 5.92 − 41 =
- 6.75 − 52 =
- 7.71 − 29 =
- 8.93 − 18 =
- 9.69 − 27 =
- 10.71 − 59 =
- 11.69 − 15 =
- 12.85 − 31 =
- 13.73 − 23 =
- 14.89 − 69 =
- 15.81 − 52 =
- 16.76 − 15 =
- 17.56 − 23 =
- 18.54 − 38 =
- 19.91 − 61 =
- 20.52 − 42 =
- 21.63 − 18 =
- 22.77 − 67 =
- 23.62 − 28 =
- 24.65 − 18 =
- 25.57 − 29 =
- 26.52 − 29 =
- 27.89 − 21 =
- 28.63 − 44 =
- 29.95 − 58 =
- 30.56 − 13 =
- 31.72 − 41 =
- 32.73 − 31 =
- 33.88 − 13 =
- 34.66 − 45 =
- 35.96 − 21 =
- 36.90 − 18 =
- 37.57 − 39 =
- 38.72 − 26 =
- 39.76 − 29 =
- 40.99 − 77 =
Answer key
- 46
- 27
- 66
- 22
- 51
- 23
- 42
- 75
- 42
- 12
- 54
- 54
- 50
- 20
- 29
- 61
- 33
- 16
- 30
- 10
- 45
- 10
- 34
- 47
- 28
- 23
- 68
- 19
- 37
- 43
- 31
- 42
- 75
- 21
- 75
- 72
- 18
- 46
- 47
- 22
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths