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
- 1.525 − 488 =
- 2.1025 − 994 =
- 3.205 − 188 =
- 4.114 − 80 =
- 5.209 − 186 =
- 6.94 − 63 =
- 7.1015 − 991 =
- 8.219 − 182 =
- 9.97 − 73 =
- 10.324 − 275 =
- 11.514 − 493 =
- 12.116 − 90 =
- 13.93 − 56 =
- 14.1015 − 982 =
- 15.101 − 75 =
- 16.230 − 198 =
- 17.222 − 175 =
- 18.229 − 191 =
- 19.83 − 60 =
- 20.222 − 181 =
- 21.325 − 275 =
- 22.113 − 94 =
- 23.99 − 71 =
- 24.209 − 188 =
- 25.83 − 66 =
- 26.303 − 294 =
- 27.60 − 26 =
- 28.501 − 478 =
- 29.61 − 26 =
- 30.1016 − 975 =
- 31.68 − 34 =
- 32.517 − 490 =
- 33.330 − 293 =
- 34.89 − 78 =
- 35.307 − 297 =
- 36.317 − 283 =
- 37.308 − 286 =
- 38.228 − 187 =
- 39.113 − 96 =
- 40.1010 − 979 =
Answer key
- 37
- 31
- 17
- 34
- 23
- 31
- 24
- 37
- 24
- 49
- 21
- 26
- 37
- 33
- 26
- 32
- 47
- 38
- 23
- 41
- 50
- 19
- 28
- 21
- 17
- 9
- 34
- 23
- 35
- 41
- 34
- 27
- 37
- 11
- 10
- 34
- 22
- 41
- 17
- 31
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths