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
- 1.106 − 75 =
- 2.95 − 74 =
- 3.328 − 292 =
- 4.81 − 65 =
- 5.1027 − 984 =
- 6.217 − 179 =
- 7.217 − 181 =
- 8.316 − 293 =
- 9.509 − 488 =
- 10.1015 − 982 =
- 11.311 − 280 =
- 12.503 − 492 =
- 13.66 − 31 =
- 14.1020 − 987 =
- 15.115 − 86 =
- 16.86 − 68 =
- 17.226 − 176 =
- 18.205 − 191 =
- 19.1017 − 992 =
- 20.89 − 74 =
- 21.86 − 75 =
- 22.124 − 96 =
- 23.321 − 278 =
- 24.87 − 78 =
- 25.56 − 36 =
- 26.313 − 278 =
- 27.526 − 478 =
- 28.213 − 186 =
- 29.517 − 486 =
- 30.509 − 496 =
- 31.203 − 189 =
- 32.113 − 92 =
- 33.69 − 42 =
- 34.505 − 495 =
- 35.226 − 184 =
- 36.507 − 494 =
- 37.323 − 277 =
- 38.100 − 56 =
- 39.122 − 91 =
- 40.317 − 298 =
Answer key
- 31
- 21
- 36
- 16
- 43
- 38
- 36
- 23
- 21
- 33
- 31
- 11
- 35
- 33
- 29
- 18
- 50
- 14
- 25
- 15
- 11
- 28
- 43
- 9
- 20
- 35
- 48
- 27
- 31
- 13
- 14
- 21
- 27
- 10
- 42
- 13
- 46
- 44
- 31
- 19
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths