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
- 1.227 − 194 =
- 2.61 − 25 =
- 3.82 − 60 =
- 4.213 − 195 =
- 5.78 − 36 =
- 6.521 − 489 =
- 7.516 − 483 =
- 8.230 − 198 =
- 9.78 − 39 =
- 10.1008 − 994 =
- 11.1001 − 982 =
- 12.317 − 278 =
- 13.1028 − 992 =
- 14.51 − 28 =
- 15.53 − 40 =
- 16.305 − 276 =
- 17.130 − 92 =
- 18.62 − 30 =
- 19.214 − 195 =
- 20.306 − 296 =
- 21.103 − 78 =
- 22.108 − 84 =
- 23.501 − 479 =
- 24.305 − 277 =
- 25.223 − 197 =
- 26.107 − 56 =
- 27.127 − 91 =
- 28.504 − 481 =
- 29.514 − 484 =
- 30.326 − 277 =
- 31.122 − 88 =
- 32.517 − 475 =
- 33.523 − 492 =
- 34.108 − 76 =
- 35.61 − 30 =
- 36.103 − 77 =
- 37.53 − 36 =
- 38.121 − 97 =
- 39.511 − 494 =
- 40.68 − 33 =
Answer key
- 33
- 36
- 22
- 18
- 42
- 32
- 33
- 32
- 39
- 14
- 19
- 39
- 36
- 23
- 13
- 29
- 38
- 32
- 19
- 10
- 25
- 24
- 22
- 28
- 26
- 51
- 36
- 23
- 30
- 49
- 34
- 42
- 31
- 32
- 31
- 26
- 17
- 24
- 17
- 35
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths