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
- 1.111 − 76 =
- 2.318 − 295 =
- 3.230 − 181 =
- 4.107 − 87 =
- 5.112 − 86 =
- 6.1008 − 991 =
- 7.108 − 78 =
- 8.523 − 480 =
- 9.525 − 476 =
- 10.319 − 284 =
- 11.64 − 42 =
- 12.73 − 28 =
- 13.67 − 33 =
- 14.60 − 39 =
- 15.99 − 60 =
- 16.511 − 494 =
- 17.1014 − 987 =
- 18.59 − 42 =
- 19.73 − 43 =
- 20.319 − 294 =
- 21.86 − 57 =
- 22.91 − 63 =
- 23.122 − 89 =
- 24.208 − 176 =
- 25.313 − 275 =
- 26.215 − 181 =
- 27.94 − 77 =
- 28.107 − 57 =
- 29.517 − 480 =
- 30.319 − 286 =
- 31.1012 − 987 =
- 32.225 − 182 =
- 33.1004 − 997 =
- 34.108 − 95 =
- 35.315 − 285 =
- 36.216 − 191 =
- 37.113 − 79 =
- 38.1015 − 985 =
- 39.107 − 91 =
- 40.58 − 46 =
Answer key
- 35
- 23
- 49
- 20
- 26
- 17
- 30
- 43
- 49
- 35
- 22
- 45
- 34
- 21
- 39
- 17
- 27
- 17
- 30
- 25
- 29
- 28
- 33
- 32
- 38
- 34
- 17
- 50
- 37
- 33
- 25
- 43
- 7
- 13
- 30
- 25
- 34
- 30
- 16
- 12
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths