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
- 1.108 − 75 =
- 2.1028 − 987 =
- 3.222 − 197 =
- 4.504 − 487 =
- 5.127 − 91 =
- 6.84 − 74 =
- 7.100 − 77 =
- 8.1017 − 979 =
- 9.217 − 175 =
- 10.83 − 69 =
- 11.108 − 59 =
- 12.106 − 89 =
- 13.72 − 38 =
- 14.1005 − 991 =
- 15.207 − 190 =
- 16.61 − 35 =
- 17.322 − 278 =
- 18.1005 − 986 =
- 19.126 − 85 =
- 20.316 − 283 =
- 21.1017 − 978 =
- 22.222 − 185 =
- 23.71 − 35 =
- 24.51 − 26 =
- 25.83 − 77 =
- 26.127 − 78 =
- 27.100 − 75 =
- 28.83 − 70 =
- 29.76 − 46 =
- 30.530 − 496 =
- 31.525 − 494 =
- 32.206 − 184 =
- 33.329 − 298 =
- 34.82 − 76 =
- 35.92 − 69 =
- 36.221 − 191 =
- 37.52 − 30 =
- 38.329 − 294 =
- 39.53 − 25 =
- 40.212 − 198 =
Answer key
- 33
- 41
- 25
- 17
- 36
- 10
- 23
- 38
- 42
- 14
- 49
- 17
- 34
- 14
- 17
- 26
- 44
- 19
- 41
- 33
- 39
- 37
- 36
- 25
- 6
- 49
- 25
- 13
- 30
- 34
- 31
- 22
- 31
- 6
- 23
- 30
- 22
- 35
- 28
- 14
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths