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
- 1.99 − 79 =
- 2.85 − 35 =
- 3.85 − 67 =
- 4.59 − 33 =
- 5.95 − 29 =
- 6.60 − 27 =
- 7.57 − 24 =
- 8.55 − 31 =
- 9.66 − 53 =
- 10.55 − 16 =
- 11.60 − 12 =
- 12.99 − 21 =
- 13.74 − 35 =
- 14.60 − 42 =
- 15.56 − 42 =
- 16.65 − 44 =
- 17.53 − 43 =
- 18.65 − 39 =
- 19.96 − 22 =
- 20.53 − 31 =
- 21.99 − 64 =
- 22.56 − 35 =
- 23.65 − 53 =
- 24.97 − 73 =
- 25.61 − 19 =
- 26.62 − 51 =
- 27.68 − 56 =
- 28.77 − 23 =
- 29.87 − 47 =
- 30.90 − 22 =
- 31.84 − 56 =
- 32.94 − 46 =
- 33.76 − 15 =
- 34.70 − 36 =
- 35.71 − 29 =
- 36.83 − 42 =
- 37.52 − 25 =
- 38.61 − 43 =
- 39.90 − 77 =
- 40.71 − 38 =
Answer key
- 20
- 50
- 18
- 26
- 66
- 33
- 33
- 24
- 13
- 39
- 48
- 78
- 39
- 18
- 14
- 21
- 10
- 26
- 74
- 22
- 35
- 21
- 12
- 24
- 42
- 11
- 12
- 54
- 40
- 68
- 28
- 48
- 61
- 34
- 42
- 41
- 27
- 18
- 13
- 33
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths