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
- 1.74 − 51 =
- 2.91 − 61 =
- 3.63 − 46 =
- 4.77 − 17 =
- 5.99 − 21 =
- 6.68 − 13 =
- 7.92 − 65 =
- 8.63 − 48 =
- 9.95 − 53 =
- 10.60 − 45 =
- 11.58 − 18 =
- 12.69 − 34 =
- 13.54 − 14 =
- 14.99 − 61 =
- 15.73 − 54 =
- 16.91 − 32 =
- 17.79 − 21 =
- 18.67 − 33 =
- 19.93 − 28 =
- 20.62 − 19 =
- 21.79 − 36 =
- 22.68 − 17 =
- 23.71 − 59 =
- 24.89 − 69 =
- 25.52 − 29 =
- 26.69 − 29 =
- 27.83 − 17 =
- 28.98 − 14 =
- 29.57 − 21 =
- 30.65 − 31 =
- 31.83 − 35 =
- 32.92 − 51 =
- 33.54 − 16 =
- 34.79 − 15 =
- 35.96 − 69 =
- 36.59 − 41 =
- 37.57 − 17 =
- 38.56 − 26 =
- 39.57 − 43 =
- 40.83 − 71 =
Answer key
- 23
- 30
- 17
- 60
- 78
- 55
- 27
- 15
- 42
- 15
- 40
- 35
- 40
- 38
- 19
- 59
- 58
- 34
- 65
- 43
- 43
- 51
- 12
- 20
- 23
- 40
- 66
- 84
- 36
- 34
- 48
- 41
- 38
- 64
- 27
- 18
- 40
- 30
- 14
- 12
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths