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
- 1.72 − 36 =
- 2.104 − 97 =
- 3.224 − 187 =
- 4.1024 − 985 =
- 5.97 − 62 =
- 6.202 − 183 =
- 7.302 − 277 =
- 8.109 − 74 =
- 9.501 − 489 =
- 10.1024 − 987 =
- 11.1022 − 996 =
- 12.322 − 296 =
- 13.106 − 76 =
- 14.309 − 287 =
- 15.507 − 496 =
- 16.1007 − 989 =
- 17.1029 − 998 =
- 18.222 − 178 =
- 19.305 − 281 =
- 20.105 − 92 =
- 21.1023 − 976 =
- 22.207 − 175 =
- 23.316 − 296 =
- 24.323 − 290 =
- 25.115 − 91 =
- 26.76 − 45 =
- 27.74 − 26 =
- 28.1003 − 988 =
- 29.1021 − 975 =
- 30.208 − 176 =
- 31.114 − 98 =
- 32.513 − 492 =
- 33.203 − 184 =
- 34.1021 − 978 =
- 35.222 − 194 =
- 36.1025 − 998 =
- 37.516 − 485 =
- 38.102 − 66 =
- 39.202 − 192 =
- 40.72 − 43 =
Answer key
- 36
- 7
- 37
- 39
- 35
- 19
- 25
- 35
- 12
- 37
- 26
- 26
- 30
- 22
- 11
- 18
- 31
- 44
- 24
- 13
- 47
- 32
- 20
- 33
- 24
- 31
- 48
- 15
- 46
- 32
- 16
- 21
- 19
- 43
- 28
- 27
- 31
- 36
- 10
- 29
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths