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
- 1.514 − 487 =
- 2.314 − 285 =
- 3.223 − 195 =
- 4.108 − 78 =
- 5.100 − 59 =
- 6.71 − 26 =
- 7.215 − 194 =
- 8.113 − 93 =
- 9.101 − 64 =
- 10.527 − 493 =
- 11.522 − 479 =
- 12.322 − 282 =
- 13.1001 − 976 =
- 14.105 − 97 =
- 15.82 − 56 =
- 16.114 − 79 =
- 17.1024 − 983 =
- 18.530 − 485 =
- 19.1005 − 977 =
- 20.1026 − 995 =
- 21.74 − 26 =
- 22.106 − 78 =
- 23.309 − 294 =
- 24.325 − 275 =
- 25.329 − 282 =
- 26.100 − 71 =
- 27.317 − 295 =
- 28.321 − 284 =
- 29.124 − 89 =
- 30.318 − 294 =
- 31.202 − 178 =
- 32.57 − 35 =
- 33.328 − 295 =
- 34.67 − 35 =
- 35.110 − 75 =
- 36.1024 − 977 =
- 37.122 − 76 =
- 38.74 − 44 =
- 39.128 − 89 =
- 40.126 − 80 =
Answer key
- 27
- 29
- 28
- 30
- 41
- 45
- 21
- 20
- 37
- 34
- 43
- 40
- 25
- 8
- 26
- 35
- 41
- 45
- 28
- 31
- 48
- 28
- 15
- 50
- 47
- 29
- 22
- 37
- 35
- 24
- 24
- 22
- 33
- 32
- 35
- 47
- 46
- 30
- 39
- 46
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths