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 − 51 =
- 2.53 − 23 =
- 3.78 − 19 =
- 4.60 − 17 =
- 5.60 − 21 =
- 6.55 − 32 =
- 7.71 − 15 =
- 8.76 − 21 =
- 9.82 − 25 =
- 10.83 − 41 =
- 11.78 − 46 =
- 12.91 − 56 =
- 13.65 − 45 =
- 14.82 − 68 =
- 15.86 − 61 =
- 16.62 − 34 =
- 17.54 − 35 =
- 18.81 − 29 =
- 19.83 − 27 =
- 20.92 − 13 =
- 21.98 − 87 =
- 22.56 − 41 =
- 23.63 − 49 =
- 24.58 − 26 =
- 25.85 − 15 =
- 26.59 − 25 =
- 27.75 − 49 =
- 28.95 − 29 =
- 29.60 − 35 =
- 30.67 − 37 =
- 31.82 − 56 =
- 32.95 − 18 =
- 33.73 − 18 =
- 34.90 − 21 =
- 35.70 − 45 =
- 36.81 − 63 =
- 37.81 − 55 =
- 38.69 − 58 =
- 39.68 − 15 =
- 40.88 − 26 =
Answer key
- 21
- 30
- 59
- 43
- 39
- 23
- 56
- 55
- 57
- 42
- 32
- 35
- 20
- 14
- 25
- 28
- 19
- 52
- 56
- 79
- 11
- 15
- 14
- 32
- 70
- 34
- 26
- 66
- 25
- 30
- 26
- 77
- 55
- 69
- 25
- 18
- 26
- 11
- 53
- 62
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths