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
- 1.56 − 29 =
- 2.105 − 95 =
- 3.211 − 187 =
- 4.126 − 83 =
- 5.1006 − 996 =
- 6.1011 − 984 =
- 7.107 − 57 =
- 8.307 − 292 =
- 9.66 − 43 =
- 10.110 − 90 =
- 11.72 − 43 =
- 12.69 − 26 =
- 13.98 − 73 =
- 14.82 − 75 =
- 15.501 − 498 =
- 16.330 − 283 =
- 17.313 − 287 =
- 18.503 − 487 =
- 19.118 − 81 =
- 20.90 − 66 =
- 21.522 − 498 =
- 22.516 − 490 =
- 23.127 − 77 =
- 24.108 − 60 =
- 25.225 − 195 =
- 26.210 − 195 =
- 27.207 − 198 =
- 28.55 − 42 =
- 29.55 − 28 =
- 30.109 − 98 =
- 31.70 − 48 =
- 32.325 − 286 =
- 33.214 − 182 =
- 34.55 − 41 =
- 35.69 − 37 =
- 36.304 − 298 =
- 37.1016 − 993 =
- 38.101 − 97 =
- 39.216 − 190 =
- 40.201 − 185 =
Answer key
- 27
- 10
- 24
- 43
- 10
- 27
- 50
- 15
- 23
- 20
- 29
- 43
- 25
- 7
- 3
- 47
- 26
- 16
- 37
- 24
- 24
- 26
- 50
- 48
- 30
- 15
- 9
- 13
- 27
- 11
- 22
- 39
- 32
- 14
- 32
- 6
- 23
- 4
- 26
- 16
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths