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
- 1.526 − 481 =
- 2.104 − 69 =
- 3.503 − 495 =
- 4.518 − 481 =
- 5.55 − 43 =
- 6.1009 − 988 =
- 7.59 − 31 =
- 8.79 − 25 =
- 9.215 − 179 =
- 10.85 − 73 =
- 11.103 − 75 =
- 12.110 − 77 =
- 13.55 − 40 =
- 14.517 − 490 =
- 15.109 − 91 =
- 16.106 − 77 =
- 17.1026 − 985 =
- 18.51 − 31 =
- 19.96 − 55 =
- 20.1019 − 998 =
- 21.83 − 78 =
- 22.56 − 29 =
- 23.303 − 291 =
- 24.306 − 278 =
- 25.1015 − 981 =
- 26.324 − 288 =
- 27.73 − 42 =
- 28.226 − 198 =
- 29.318 − 285 =
- 30.521 − 484 =
- 31.64 − 42 =
- 32.51 − 25 =
- 33.1011 − 989 =
- 34.51 − 45 =
- 35.1012 − 982 =
- 36.308 − 297 =
- 37.323 − 284 =
- 38.119 − 80 =
- 39.79 − 29 =
- 40.230 − 180 =
Answer key
- 45
- 35
- 8
- 37
- 12
- 21
- 28
- 54
- 36
- 12
- 28
- 33
- 15
- 27
- 18
- 29
- 41
- 20
- 41
- 21
- 5
- 27
- 12
- 28
- 34
- 36
- 31
- 28
- 33
- 37
- 22
- 26
- 22
- 6
- 30
- 11
- 39
- 39
- 50
- 50
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths