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
- 1.114 − 87 =
- 2.205 − 193 =
- 3.525 − 495 =
- 4.1007 − 975 =
- 5.54 − 48 =
- 6.515 − 481 =
- 7.101 − 78 =
- 8.307 − 297 =
- 9.110 − 87 =
- 10.107 − 67 =
- 11.54 − 27 =
- 12.1012 − 988 =
- 13.302 − 283 =
- 14.1010 − 976 =
- 15.319 − 281 =
- 16.211 − 180 =
- 17.316 − 276 =
- 18.219 − 191 =
- 19.504 − 497 =
- 20.202 − 190 =
- 21.63 − 42 =
- 22.103 − 75 =
- 23.101 − 80 =
- 24.106 − 58 =
- 25.73 − 35 =
- 26.101 − 63 =
- 27.503 − 488 =
- 28.527 − 484 =
- 29.230 − 189 =
- 30.87 − 55 =
- 31.205 − 194 =
- 32.125 − 87 =
- 33.521 − 496 =
- 34.110 − 58 =
- 35.106 − 73 =
- 36.515 − 497 =
- 37.201 − 198 =
- 38.220 − 187 =
- 39.89 − 61 =
- 40.102 − 63 =
Answer key
- 27
- 12
- 30
- 32
- 6
- 34
- 23
- 10
- 23
- 40
- 27
- 24
- 19
- 34
- 38
- 31
- 40
- 28
- 7
- 12
- 21
- 28
- 21
- 48
- 38
- 38
- 15
- 43
- 41
- 32
- 11
- 38
- 25
- 52
- 33
- 18
- 3
- 33
- 28
- 39
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths