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
- 1.65 − 37 =
- 2.324 − 280 =
- 3.68 − 39 =
- 4.55 − 27 =
- 5.214 − 183 =
- 6.62 − 35 =
- 7.127 − 75 =
- 8.512 − 475 =
- 9.529 − 478 =
- 10.106 − 65 =
- 11.110 − 68 =
- 12.116 − 98 =
- 13.515 − 478 =
- 14.68 − 34 =
- 15.204 − 186 =
- 16.69 − 31 =
- 17.67 − 26 =
- 18.130 − 87 =
- 19.215 − 177 =
- 20.319 − 282 =
- 21.73 − 33 =
- 22.329 − 282 =
- 23.55 − 43 =
- 24.109 − 62 =
- 25.70 − 40 =
- 26.301 − 277 =
- 27.309 − 278 =
- 28.329 − 285 =
- 29.90 − 72 =
- 30.89 − 70 =
- 31.512 − 495 =
- 32.208 − 185 =
- 33.70 − 31 =
- 34.65 − 44 =
- 35.104 − 81 =
- 36.512 − 487 =
- 37.83 − 64 =
- 38.509 − 484 =
- 39.1011 − 994 =
- 40.63 − 25 =
Answer key
- 28
- 44
- 29
- 28
- 31
- 27
- 52
- 37
- 51
- 41
- 42
- 18
- 37
- 34
- 18
- 38
- 41
- 43
- 38
- 37
- 40
- 47
- 12
- 47
- 30
- 24
- 31
- 44
- 18
- 19
- 17
- 23
- 39
- 21
- 23
- 25
- 19
- 25
- 17
- 38
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths