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
- 1.224 − 198 =
- 2.201 − 178 =
- 3.51 − 47 =
- 4.100 − 67 =
- 5.502 − 482 =
- 6.114 − 88 =
- 7.321 − 286 =
- 8.102 − 75 =
- 9.1027 − 987 =
- 10.1012 − 976 =
- 11.218 − 186 =
- 12.207 − 178 =
- 13.124 − 90 =
- 14.1007 − 998 =
- 15.53 − 25 =
- 16.307 − 288 =
- 17.209 − 193 =
- 18.102 − 65 =
- 19.320 − 279 =
- 20.71 − 26 =
- 21.511 − 485 =
- 22.69 − 37 =
- 23.306 − 286 =
- 24.225 − 187 =
- 25.104 − 96 =
- 26.1018 − 978 =
- 27.74 − 43 =
- 28.521 − 493 =
- 29.72 − 45 =
- 30.506 − 477 =
- 31.509 − 494 =
- 32.67 − 28 =
- 33.307 − 296 =
- 34.212 − 193 =
- 35.501 − 495 =
- 36.52 − 44 =
- 37.217 − 179 =
- 38.104 − 92 =
- 39.78 − 42 =
- 40.70 − 42 =
Answer key
- 26
- 23
- 4
- 33
- 20
- 26
- 35
- 27
- 40
- 36
- 32
- 29
- 34
- 9
- 28
- 19
- 16
- 37
- 41
- 45
- 26
- 32
- 20
- 38
- 8
- 40
- 31
- 28
- 27
- 29
- 15
- 39
- 11
- 19
- 6
- 8
- 38
- 12
- 36
- 28
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths