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
- 1.516 − 498 =
- 2.110 − 81 =
- 3.113 − 96 =
- 4.230 − 188 =
- 5.526 − 498 =
- 6.113 − 78 =
- 7.228 − 187 =
- 8.206 − 178 =
- 9.52 − 28 =
- 10.226 − 179 =
- 11.110 − 56 =
- 12.209 − 188 =
- 13.77 − 44 =
- 14.62 − 38 =
- 15.104 − 66 =
- 16.85 − 64 =
- 17.510 − 496 =
- 18.105 − 61 =
- 19.222 − 183 =
- 20.302 − 282 =
- 21.311 − 289 =
- 22.99 − 72 =
- 23.72 − 40 =
- 24.71 − 46 =
- 25.1022 − 975 =
- 26.207 − 196 =
- 27.52 − 36 =
- 28.319 − 295 =
- 29.111 − 80 =
- 30.313 − 284 =
- 31.217 − 192 =
- 32.125 − 75 =
- 33.105 − 90 =
- 34.84 − 55 =
- 35.115 − 90 =
- 36.103 − 83 =
- 37.77 − 28 =
- 38.110 − 90 =
- 39.304 − 283 =
- 40.109 − 77 =
Answer key
- 18
- 29
- 17
- 42
- 28
- 35
- 41
- 28
- 24
- 47
- 54
- 21
- 33
- 24
- 38
- 21
- 14
- 44
- 39
- 20
- 22
- 27
- 32
- 25
- 47
- 11
- 16
- 24
- 31
- 29
- 25
- 50
- 15
- 29
- 25
- 20
- 49
- 20
- 21
- 32
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths