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
- 1.72 − 42 =
- 2.83 − 17 =
- 3.92 − 61 =
- 4.84 − 25 =
- 5.67 − 19 =
- 6.93 − 27 =
- 7.89 − 26 =
- 8.90 − 64 =
- 9.61 − 51 =
- 10.69 − 14 =
- 11.93 − 45 =
- 12.91 − 35 =
- 13.80 − 26 =
- 14.56 − 32 =
- 15.57 − 42 =
- 16.98 − 52 =
- 17.94 − 83 =
- 18.85 − 71 =
- 19.64 − 43 =
- 20.80 − 66 =
- 21.76 − 37 =
- 22.85 − 43 =
- 23.73 − 51 =
- 24.67 − 27 =
- 25.76 − 22 =
- 26.80 − 44 =
- 27.96 − 68 =
- 28.82 − 67 =
- 29.95 − 57 =
- 30.91 − 68 =
- 31.86 − 17 =
- 32.57 − 12 =
- 33.84 − 71 =
- 34.63 − 34 =
- 35.79 − 14 =
- 36.71 − 61 =
- 37.60 − 31 =
- 38.73 − 54 =
- 39.98 − 16 =
- 40.63 − 46 =
Answer key
- 30
- 66
- 31
- 59
- 48
- 66
- 63
- 26
- 10
- 55
- 48
- 56
- 54
- 24
- 15
- 46
- 11
- 14
- 21
- 14
- 39
- 42
- 22
- 40
- 54
- 36
- 28
- 15
- 38
- 23
- 69
- 45
- 13
- 29
- 65
- 10
- 29
- 19
- 82
- 17
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths