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
- 1.60 − 48 =
- 2.59 − 34 =
- 3.226 − 191 =
- 4.68 − 34 =
- 5.213 − 198 =
- 6.88 − 61 =
- 7.326 − 297 =
- 8.52 − 33 =
- 9.209 − 178 =
- 10.72 − 40 =
- 11.90 − 65 =
- 12.523 − 491 =
- 13.515 − 497 =
- 14.1023 − 988 =
- 15.92 − 60 =
- 16.104 − 98 =
- 17.78 − 32 =
- 18.86 − 77 =
- 19.524 − 497 =
- 20.101 − 95 =
- 21.505 − 482 =
- 22.516 − 491 =
- 23.52 − 36 =
- 24.211 − 186 =
- 25.307 − 286 =
- 26.321 − 283 =
- 27.319 − 298 =
- 28.112 − 93 =
- 29.75 − 47 =
- 30.206 − 188 =
- 31.524 − 494 =
- 32.105 − 66 =
- 33.1018 − 995 =
- 34.108 − 85 =
- 35.522 − 497 =
- 36.1011 − 982 =
- 37.86 − 68 =
- 38.104 − 92 =
- 39.315 − 297 =
- 40.93 − 71 =
Answer key
- 12
- 25
- 35
- 34
- 15
- 27
- 29
- 19
- 31
- 32
- 25
- 32
- 18
- 35
- 32
- 6
- 46
- 9
- 27
- 6
- 23
- 25
- 16
- 25
- 21
- 38
- 21
- 19
- 28
- 18
- 30
- 39
- 23
- 23
- 25
- 29
- 18
- 12
- 18
- 22
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths