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
- 1.328 − 282 =
- 2.73 − 30 =
- 3.111 − 86 =
- 4.93 − 58 =
- 5.64 − 30 =
- 6.313 − 281 =
- 7.84 − 76 =
- 8.202 − 178 =
- 9.318 − 284 =
- 10.102 − 62 =
- 11.529 − 477 =
- 12.230 − 182 =
- 13.202 − 185 =
- 14.127 − 87 =
- 15.214 − 188 =
- 16.1028 − 984 =
- 17.63 − 37 =
- 18.313 − 289 =
- 19.219 − 181 =
- 20.501 − 494 =
- 21.114 − 89 =
- 22.53 − 27 =
- 23.1022 − 998 =
- 24.213 − 185 =
- 25.210 − 192 =
- 26.97 − 63 =
- 27.1014 − 991 =
- 28.327 − 278 =
- 29.209 − 198 =
- 30.511 − 484 =
- 31.1010 − 978 =
- 32.510 − 493 =
- 33.64 − 25 =
- 34.77 − 43 =
- 35.323 − 292 =
- 36.65 − 37 =
- 37.210 − 196 =
- 38.303 − 279 =
- 39.91 − 73 =
- 40.211 − 194 =
Answer key
- 46
- 43
- 25
- 35
- 34
- 32
- 8
- 24
- 34
- 40
- 52
- 48
- 17
- 40
- 26
- 44
- 26
- 24
- 38
- 7
- 25
- 26
- 24
- 28
- 18
- 34
- 23
- 49
- 11
- 27
- 32
- 17
- 39
- 34
- 31
- 28
- 14
- 24
- 18
- 17
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths