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 − 487 =
- 2.95 − 56 =
- 3.102 − 84 =
- 4.92 − 74 =
- 5.307 − 277 =
- 6.73 − 32 =
- 7.57 − 47 =
- 8.72 − 33 =
- 9.96 − 76 =
- 10.98 − 59 =
- 11.303 − 291 =
- 12.92 − 67 =
- 13.60 − 35 =
- 14.112 − 94 =
- 15.1023 − 982 =
- 16.90 − 75 =
- 17.317 − 277 =
- 18.71 − 39 =
- 19.118 − 93 =
- 20.207 − 194 =
- 21.1029 − 998 =
- 22.1020 − 998 =
- 23.218 − 185 =
- 24.1009 − 985 =
- 25.88 − 61 =
- 26.108 − 71 =
- 27.1014 − 979 =
- 28.84 − 73 =
- 29.106 − 76 =
- 30.320 − 295 =
- 31.109 − 95 =
- 32.523 − 485 =
- 33.506 − 493 =
- 34.319 − 293 =
- 35.507 − 479 =
- 36.520 − 485 =
- 37.324 − 293 =
- 38.502 − 483 =
- 39.504 − 498 =
- 40.1022 − 976 =
Answer key
- 39
- 39
- 18
- 18
- 30
- 41
- 10
- 39
- 20
- 39
- 12
- 25
- 25
- 18
- 41
- 15
- 40
- 32
- 25
- 13
- 31
- 22
- 33
- 24
- 27
- 37
- 35
- 11
- 30
- 25
- 14
- 38
- 13
- 26
- 28
- 35
- 31
- 19
- 6
- 46
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths