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
- 1.528 − 483 =
- 2.1027 − 998 =
- 3.77 − 44 =
- 4.226 − 193 =
- 5.82 − 72 =
- 6.78 − 43 =
- 7.120 − 95 =
- 8.1013 − 990 =
- 9.64 − 30 =
- 10.111 − 79 =
- 11.114 − 92 =
- 12.204 − 198 =
- 13.129 − 95 =
- 14.223 − 176 =
- 15.325 − 296 =
- 16.58 − 32 =
- 17.79 − 38 =
- 18.223 − 181 =
- 19.524 − 489 =
- 20.225 − 195 =
- 21.304 − 279 =
- 22.220 − 187 =
- 23.207 − 184 =
- 24.1023 − 997 =
- 25.1023 − 985 =
- 26.106 − 73 =
- 27.115 − 90 =
- 28.1018 − 975 =
- 29.110 − 82 =
- 30.208 − 198 =
- 31.209 − 176 =
- 32.107 − 68 =
- 33.68 − 26 =
- 34.1030 − 981 =
- 35.321 − 279 =
- 36.225 − 191 =
- 37.103 − 76 =
- 38.1027 − 976 =
- 39.82 − 58 =
- 40.203 − 181 =
Answer key
- 45
- 29
- 33
- 33
- 10
- 35
- 25
- 23
- 34
- 32
- 22
- 6
- 34
- 47
- 29
- 26
- 41
- 42
- 35
- 30
- 25
- 33
- 23
- 26
- 38
- 33
- 25
- 43
- 28
- 10
- 33
- 39
- 42
- 49
- 42
- 34
- 27
- 51
- 24
- 22
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths