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
- 1.69 − 21 =
- 2.74 − 17 =
- 3.73 − 62 =
- 4.66 − 41 =
- 5.63 − 34 =
- 6.68 − 51 =
- 7.71 − 31 =
- 8.53 − 31 =
- 9.59 − 32 =
- 10.83 − 29 =
- 11.69 − 56 =
- 12.52 − 41 =
- 13.57 − 31 =
- 14.80 − 25 =
- 15.65 − 51 =
- 16.59 − 36 =
- 17.75 − 65 =
- 18.77 − 41 =
- 19.91 − 67 =
- 20.53 − 12 =
- 21.58 − 12 =
- 22.67 − 48 =
- 23.79 − 45 =
- 24.85 − 21 =
- 25.76 − 39 =
- 26.94 − 35 =
- 27.54 − 14 =
- 28.59 − 22 =
- 29.52 − 12 =
- 30.66 − 56 =
- 31.80 − 56 =
- 32.67 − 56 =
- 33.89 − 12 =
- 34.57 − 42 =
- 35.65 − 21 =
- 36.65 − 25 =
- 37.97 − 13 =
- 38.67 − 46 =
- 39.90 − 75 =
- 40.55 − 33 =
Answer key
- 48
- 57
- 11
- 25
- 29
- 17
- 40
- 22
- 27
- 54
- 13
- 11
- 26
- 55
- 14
- 23
- 10
- 36
- 24
- 41
- 46
- 19
- 34
- 64
- 37
- 59
- 40
- 37
- 40
- 10
- 24
- 11
- 77
- 15
- 44
- 40
- 84
- 21
- 15
- 22
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths