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
- 1.503 − 481 =
- 2.509 − 475 =
- 3.319 − 282 =
- 4.1019 − 992 =
- 5.1029 − 992 =
- 6.64 − 31 =
- 7.329 − 292 =
- 8.1008 − 976 =
- 9.226 − 182 =
- 10.104 − 78 =
- 11.1013 − 992 =
- 12.218 − 184 =
- 13.206 − 184 =
- 14.104 − 61 =
- 15.113 − 80 =
- 16.223 − 180 =
- 17.305 − 290 =
- 18.227 − 193 =
- 19.213 − 193 =
- 20.528 − 494 =
- 21.504 − 483 =
- 22.520 − 498 =
- 23.1010 − 996 =
- 24.322 − 277 =
- 25.59 − 26 =
- 26.57 − 36 =
- 27.97 − 64 =
- 28.310 − 295 =
- 29.1022 − 984 =
- 30.1030 − 979 =
- 31.1004 − 984 =
- 32.121 − 86 =
- 33.302 − 276 =
- 34.101 − 56 =
- 35.213 − 187 =
- 36.103 − 96 =
- 37.203 − 176 =
- 38.85 − 59 =
- 39.103 − 76 =
- 40.66 − 27 =
Answer key
- 22
- 34
- 37
- 27
- 37
- 33
- 37
- 32
- 44
- 26
- 21
- 34
- 22
- 43
- 33
- 43
- 15
- 34
- 20
- 34
- 21
- 22
- 14
- 45
- 33
- 21
- 33
- 15
- 38
- 51
- 20
- 35
- 26
- 45
- 26
- 7
- 27
- 26
- 27
- 39
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths