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
- 1.86 − 56 =
- 2.504 − 486 =
- 3.207 − 198 =
- 4.328 − 292 =
- 5.1024 − 987 =
- 6.61 − 39 =
- 7.217 − 185 =
- 8.108 − 91 =
- 9.511 − 493 =
- 10.306 − 275 =
- 11.97 − 76 =
- 12.130 − 77 =
- 13.68 − 31 =
- 14.54 − 40 =
- 15.1005 − 982 =
- 16.103 − 94 =
- 17.303 − 295 =
- 18.65 − 46 =
- 19.84 − 74 =
- 20.129 − 82 =
- 21.211 − 181 =
- 22.502 − 485 =
- 23.64 − 36 =
- 24.127 − 80 =
- 25.326 − 276 =
- 26.1017 − 994 =
- 27.229 − 183 =
- 28.59 − 48 =
- 29.108 − 84 =
- 30.226 − 189 =
- 31.505 − 490 =
- 32.224 − 186 =
- 33.128 − 92 =
- 34.511 − 484 =
- 35.509 − 485 =
- 36.54 − 38 =
- 37.123 − 81 =
- 38.1017 − 984 =
- 39.114 − 95 =
- 40.62 − 28 =
Answer key
- 30
- 18
- 9
- 36
- 37
- 22
- 32
- 17
- 18
- 31
- 21
- 53
- 37
- 14
- 23
- 9
- 8
- 19
- 10
- 47
- 30
- 17
- 28
- 47
- 50
- 23
- 46
- 11
- 24
- 37
- 15
- 38
- 36
- 27
- 24
- 16
- 42
- 33
- 19
- 34
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths