Subtraction by Counting Up Worksheet
How to do it in your head (Count up): Start at the smaller number. Jump to the next ten, then the next hundred, then to the bigger number. Add up all the jumps.
NameDateTime takenScore ___ / 40
- 1.314 − 281 =
- 2.227 − 193 =
- 3.106 − 57 =
- 4.518 − 492 =
- 5.202 − 175 =
- 6.96 − 61 =
- 7.221 − 187 =
- 8.63 − 39 =
- 9.102 − 74 =
- 10.71 − 25 =
- 11.51 − 29 =
- 12.62 − 27 =
- 13.84 − 68 =
- 14.111 − 89 =
- 15.56 − 43 =
- 16.213 − 193 =
- 17.206 − 176 =
- 18.503 − 497 =
- 19.309 − 285 =
- 20.221 − 179 =
- 21.310 − 298 =
- 22.101 − 95 =
- 23.1010 − 984 =
- 24.226 − 193 =
- 25.209 − 183 =
- 26.119 − 81 =
- 27.1018 − 994 =
- 28.1028 − 991 =
- 29.76 − 30 =
- 30.217 − 180 =
- 31.95 − 78 =
- 32.1017 − 996 =
- 33.122 − 75 =
- 34.1028 − 976 =
- 35.326 − 298 =
- 36.107 − 81 =
- 37.61 − 43 =
- 38.220 − 179 =
- 39.1025 − 981 =
- 40.1017 − 979 =
Answer key
- 33
- 34
- 49
- 26
- 27
- 35
- 34
- 24
- 28
- 46
- 22
- 35
- 16
- 22
- 13
- 20
- 30
- 6
- 24
- 42
- 12
- 6
- 26
- 33
- 26
- 38
- 24
- 37
- 46
- 37
- 17
- 21
- 47
- 52
- 28
- 26
- 18
- 41
- 44
- 38
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths