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
- 1.64 − 12 =
- 2.63 − 12 =
- 3.86 − 15 =
- 4.95 − 81 =
- 5.59 − 29 =
- 6.61 − 47 =
- 7.62 − 21 =
- 8.67 − 55 =
- 9.77 − 25 =
- 10.74 − 56 =
- 11.85 − 13 =
- 12.67 − 49 =
- 13.61 − 51 =
- 14.58 − 21 =
- 15.54 − 38 =
- 16.64 − 21 =
- 17.75 − 15 =
- 18.52 − 27 =
- 19.56 − 35 =
- 20.88 − 67 =
- 21.88 − 74 =
- 22.84 − 46 =
- 23.84 − 49 =
- 24.64 − 31 =
- 25.90 − 36 =
- 26.57 − 31 =
- 27.96 − 71 =
- 28.91 − 43 =
- 29.60 − 45 =
- 30.98 − 31 =
- 31.91 − 68 =
- 32.66 − 23 =
- 33.85 − 18 =
- 34.53 − 36 =
- 35.78 − 21 =
- 36.52 − 22 =
- 37.69 − 55 =
- 38.60 − 22 =
- 39.59 − 48 =
- 40.91 − 12 =
Answer key
- 52
- 51
- 71
- 14
- 30
- 14
- 41
- 12
- 52
- 18
- 72
- 18
- 10
- 37
- 16
- 43
- 60
- 25
- 21
- 21
- 14
- 38
- 35
- 33
- 54
- 26
- 25
- 48
- 15
- 67
- 23
- 43
- 67
- 17
- 57
- 30
- 14
- 38
- 11
- 79
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths