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
- 1.1025 − 986 =
- 2.205 − 190 =
- 3.103 − 77 =
- 4.102 − 68 =
- 5.80 − 36 =
- 6.321 − 288 =
- 7.109 − 62 =
- 8.230 − 196 =
- 9.55 − 41 =
- 10.79 − 42 =
- 11.97 − 66 =
- 12.89 − 70 =
- 13.515 − 483 =
- 14.1009 − 995 =
- 15.1028 − 992 =
- 16.1007 − 984 =
- 17.227 − 178 =
- 18.302 − 287 =
- 19.103 − 66 =
- 20.312 − 285 =
- 21.526 − 488 =
- 22.84 − 57 =
- 23.93 − 78 =
- 24.62 − 36 =
- 25.104 − 66 =
- 26.216 − 197 =
- 27.209 − 195 =
- 28.505 − 485 =
- 29.88 − 65 =
- 30.78 − 46 =
- 31.307 − 275 =
- 32.1030 − 998 =
- 33.128 − 97 =
- 34.74 − 27 =
- 35.317 − 278 =
- 36.216 − 184 =
- 37.207 − 191 =
- 38.1001 − 988 =
- 39.1013 − 984 =
- 40.106 − 74 =
Answer key
- 39
- 15
- 26
- 34
- 44
- 33
- 47
- 34
- 14
- 37
- 31
- 19
- 32
- 14
- 36
- 23
- 49
- 15
- 37
- 27
- 38
- 27
- 15
- 26
- 38
- 19
- 14
- 20
- 23
- 32
- 32
- 32
- 31
- 47
- 39
- 32
- 16
- 13
- 29
- 32
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths