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
- 1.123 − 88 =
- 2.64 − 41 =
- 3.54 − 38 =
- 4.104 − 86 =
- 5.502 − 496 =
- 6.129 − 81 =
- 7.209 − 181 =
- 8.1007 − 997 =
- 9.209 − 194 =
- 10.216 − 198 =
- 11.82 − 58 =
- 12.307 − 296 =
- 13.324 − 284 =
- 14.503 − 489 =
- 15.109 − 62 =
- 16.326 − 297 =
- 17.91 − 68 =
- 18.1014 − 995 =
- 19.102 − 89 =
- 20.522 − 484 =
- 21.310 − 285 =
- 22.311 − 277 =
- 23.53 − 48 =
- 24.102 − 70 =
- 25.61 − 45 =
- 26.83 − 76 =
- 27.80 − 36 =
- 28.102 − 93 =
- 29.102 − 59 =
- 30.307 − 292 =
- 31.71 − 47 =
- 32.77 − 39 =
- 33.523 − 481 =
- 34.56 − 45 =
- 35.214 − 187 =
- 36.75 − 34 =
- 37.1001 − 985 =
- 38.114 − 80 =
- 39.501 − 483 =
- 40.1009 − 996 =
Answer key
- 35
- 23
- 16
- 18
- 6
- 48
- 28
- 10
- 15
- 18
- 24
- 11
- 40
- 14
- 47
- 29
- 23
- 19
- 13
- 38
- 25
- 34
- 5
- 32
- 16
- 7
- 44
- 9
- 43
- 15
- 24
- 38
- 42
- 11
- 27
- 41
- 16
- 34
- 18
- 13
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths