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
- 1.87 − 21 =
- 2.97 − 67 =
- 3.67 − 21 =
- 4.97 − 59 =
- 5.59 − 47 =
- 6.93 − 28 =
- 7.77 − 12 =
- 8.72 − 32 =
- 9.56 − 18 =
- 10.90 − 35 =
- 11.93 − 35 =
- 12.88 − 58 =
- 13.55 − 45 =
- 14.95 − 14 =
- 15.97 − 19 =
- 16.62 − 37 =
- 17.60 − 51 =
- 18.59 − 34 =
- 19.83 − 36 =
- 20.63 − 27 =
- 21.94 − 34 =
- 22.80 − 65 =
- 23.55 − 15 =
- 24.94 − 24 =
- 25.97 − 26 =
- 26.71 − 51 =
- 27.97 − 62 =
- 28.58 − 21 =
- 29.74 − 51 =
- 30.54 − 23 =
- 31.77 − 64 =
- 32.76 − 17 =
- 33.82 − 36 =
- 34.97 − 32 =
- 35.80 − 28 =
- 36.72 − 47 =
- 37.81 − 21 =
- 38.66 − 46 =
- 39.52 − 35 =
- 40.61 − 37 =
Answer key
- 66
- 30
- 46
- 38
- 12
- 65
- 65
- 40
- 38
- 55
- 58
- 30
- 10
- 81
- 78
- 25
- 9
- 25
- 47
- 36
- 60
- 15
- 40
- 70
- 71
- 20
- 35
- 37
- 23
- 31
- 13
- 59
- 46
- 65
- 52
- 25
- 60
- 20
- 17
- 24
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths