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
- 1.227 − 184 =
- 2.53 − 48 =
- 3.59 − 41 =
- 4.89 − 57 =
- 5.1027 − 989 =
- 6.91 − 59 =
- 7.306 − 275 =
- 8.1010 − 991 =
- 9.56 − 35 =
- 10.201 − 198 =
- 11.117 − 82 =
- 12.1009 − 985 =
- 13.106 − 96 =
- 14.88 − 65 =
- 15.1003 − 979 =
- 16.1020 − 985 =
- 17.330 − 296 =
- 18.1017 − 984 =
- 19.122 − 76 =
- 20.83 − 58 =
- 21.316 − 287 =
- 22.92 − 73 =
- 23.128 − 75 =
- 24.325 − 286 =
- 25.1028 − 976 =
- 26.318 − 280 =
- 27.82 − 63 =
- 28.518 − 486 =
- 29.82 − 57 =
- 30.107 − 59 =
- 31.115 − 97 =
- 32.215 − 186 =
- 33.103 − 61 =
- 34.70 − 38 =
- 35.83 − 71 =
- 36.129 − 86 =
- 37.503 − 481 =
- 38.1009 − 990 =
- 39.219 − 190 =
- 40.212 − 188 =
Answer key
- 43
- 5
- 18
- 32
- 38
- 32
- 31
- 19
- 21
- 3
- 35
- 24
- 10
- 23
- 24
- 35
- 34
- 33
- 46
- 25
- 29
- 19
- 53
- 39
- 52
- 38
- 19
- 32
- 25
- 48
- 18
- 29
- 42
- 32
- 12
- 43
- 22
- 19
- 29
- 24
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths