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
- 1.326 − 290 =
- 2.127 − 95 =
- 3.85 − 76 =
- 4.112 − 96 =
- 5.55 − 48 =
- 6.221 − 187 =
- 7.330 − 277 =
- 8.527 − 495 =
- 9.129 − 83 =
- 10.70 − 46 =
- 11.325 − 294 =
- 12.88 − 74 =
- 13.207 − 176 =
- 14.1006 − 986 =
- 15.307 − 297 =
- 16.110 − 91 =
- 17.103 − 56 =
- 18.104 − 89 =
- 19.55 − 33 =
- 20.82 − 70 =
- 21.65 − 35 =
- 22.1001 − 996 =
- 23.80 − 39 =
- 24.504 − 478 =
- 25.521 − 478 =
- 26.210 − 190 =
- 27.230 − 193 =
- 28.522 − 477 =
- 29.226 − 182 =
- 30.94 − 70 =
- 31.204 − 197 =
- 32.83 − 58 =
- 33.93 − 70 =
- 34.121 − 87 =
- 35.71 − 45 =
- 36.526 − 498 =
- 37.1022 − 978 =
- 38.83 − 75 =
- 39.224 − 196 =
- 40.124 − 91 =
Answer key
- 36
- 32
- 9
- 16
- 7
- 34
- 53
- 32
- 46
- 24
- 31
- 14
- 31
- 20
- 10
- 19
- 47
- 15
- 22
- 12
- 30
- 5
- 41
- 26
- 43
- 20
- 37
- 45
- 44
- 24
- 7
- 25
- 23
- 34
- 26
- 28
- 44
- 8
- 28
- 33
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths