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
- 1.201 − 193 =
- 2.108 − 96 =
- 3.57 − 39 =
- 4.77 − 36 =
- 5.221 − 197 =
- 6.1015 − 985 =
- 7.224 − 177 =
- 8.216 − 175 =
- 9.212 − 181 =
- 10.1010 − 988 =
- 11.219 − 183 =
- 12.207 − 194 =
- 13.210 − 198 =
- 14.204 − 191 =
- 15.122 − 97 =
- 16.330 − 294 =
- 17.215 − 190 =
- 18.501 − 481 =
- 19.95 − 64 =
- 20.72 − 32 =
- 21.116 − 88 =
- 22.114 − 88 =
- 23.212 − 193 =
- 24.319 − 295 =
- 25.98 − 75 =
- 26.94 − 61 =
- 27.74 − 42 =
- 28.100 − 57 =
- 29.55 − 40 =
- 30.77 − 28 =
- 31.316 − 276 =
- 32.67 − 43 =
- 33.105 − 87 =
- 34.510 − 493 =
- 35.202 − 185 =
- 36.51 − 45 =
- 37.502 − 485 =
- 38.1003 − 994 =
- 39.527 − 486 =
- 40.119 − 97 =
Answer key
- 8
- 12
- 18
- 41
- 24
- 30
- 47
- 41
- 31
- 22
- 36
- 13
- 12
- 13
- 25
- 36
- 25
- 20
- 31
- 40
- 28
- 26
- 19
- 24
- 23
- 33
- 32
- 43
- 15
- 49
- 40
- 24
- 18
- 17
- 17
- 6
- 17
- 9
- 41
- 22
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths