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
- 1.222 − 177 =
- 2.215 − 186 =
- 3.224 − 176 =
- 4.76 − 25 =
- 5.329 − 293 =
- 6.95 − 57 =
- 7.71 − 25 =
- 8.122 − 89 =
- 9.1020 − 994 =
- 10.524 − 494 =
- 11.316 − 293 =
- 12.214 − 193 =
- 13.102 − 66 =
- 14.309 − 286 =
- 15.318 − 293 =
- 16.221 − 177 =
- 17.57 − 47 =
- 18.511 − 493 =
- 19.218 − 175 =
- 20.70 − 39 =
- 21.1029 − 993 =
- 22.108 − 81 =
- 23.317 − 292 =
- 24.208 − 187 =
- 25.508 − 496 =
- 26.1030 − 996 =
- 27.223 − 180 =
- 28.63 − 43 =
- 29.63 − 45 =
- 30.212 − 180 =
- 31.219 − 186 =
- 32.306 − 296 =
- 33.520 − 489 =
- 34.219 − 192 =
- 35.111 − 75 =
- 36.528 − 482 =
- 37.62 − 42 =
- 38.108 − 71 =
- 39.224 − 198 =
- 40.507 − 487 =
Answer key
- 45
- 29
- 48
- 51
- 36
- 38
- 46
- 33
- 26
- 30
- 23
- 21
- 36
- 23
- 25
- 44
- 10
- 18
- 43
- 31
- 36
- 27
- 25
- 21
- 12
- 34
- 43
- 20
- 18
- 32
- 33
- 10
- 31
- 27
- 36
- 46
- 20
- 37
- 26
- 20
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths