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
- 1.66 − 17 =
- 2.67 − 18 =
- 3.52 − 21 =
- 4.62 − 51 =
- 5.95 − 74 =
- 6.69 − 24 =
- 7.63 − 34 =
- 8.65 − 25 =
- 9.72 − 29 =
- 10.57 − 39 =
- 11.58 − 21 =
- 12.54 − 15 =
- 13.74 − 21 =
- 14.62 − 17 =
- 15.52 − 31 =
- 16.65 − 24 =
- 17.88 − 74 =
- 18.64 − 46 =
- 19.79 − 17 =
- 20.59 − 17 =
- 21.89 − 18 =
- 22.75 − 58 =
- 23.87 − 22 =
- 24.56 − 19 =
- 25.97 − 59 =
- 26.64 − 38 =
- 27.74 − 24 =
- 28.54 − 34 =
- 29.86 − 21 =
- 30.93 − 49 =
- 31.64 − 27 =
- 32.56 − 33 =
- 33.64 − 33 =
- 34.78 − 17 =
- 35.92 − 17 =
- 36.71 − 36 =
- 37.52 − 33 =
- 38.86 − 31 =
- 39.65 − 45 =
- 40.74 − 18 =
Answer key
- 49
- 49
- 31
- 11
- 21
- 45
- 29
- 40
- 43
- 18
- 37
- 39
- 53
- 45
- 21
- 41
- 14
- 18
- 62
- 42
- 71
- 17
- 65
- 37
- 38
- 26
- 50
- 20
- 65
- 44
- 37
- 23
- 31
- 61
- 75
- 35
- 19
- 55
- 20
- 56
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths