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
- 1.109 − 57 =
- 2.123 − 92 =
- 3.102 − 93 =
- 4.1010 − 995 =
- 5.96 − 76 =
- 6.121 − 79 =
- 7.530 − 482 =
- 8.522 − 492 =
- 9.326 − 292 =
- 10.105 − 75 =
- 11.75 − 29 =
- 12.1002 − 995 =
- 13.313 − 279 =
- 14.130 − 92 =
- 15.91 − 61 =
- 16.220 − 181 =
- 17.115 − 88 =
- 18.213 − 183 =
- 19.517 − 493 =
- 20.109 − 62 =
- 21.210 − 190 =
- 22.1013 − 995 =
- 23.1007 − 982 =
- 24.227 − 194 =
- 25.85 − 77 =
- 26.91 − 60 =
- 27.105 − 57 =
- 28.95 − 72 =
- 29.59 − 31 =
- 30.107 − 80 =
- 31.79 − 37 =
- 32.105 − 79 =
- 33.319 − 275 =
- 34.305 − 298 =
- 35.216 − 190 =
- 36.213 − 198 =
- 37.504 − 478 =
- 38.503 − 489 =
- 39.56 − 29 =
- 40.89 − 71 =
Answer key
- 52
- 31
- 9
- 15
- 20
- 42
- 48
- 30
- 34
- 30
- 46
- 7
- 34
- 38
- 30
- 39
- 27
- 30
- 24
- 47
- 20
- 18
- 25
- 33
- 8
- 31
- 48
- 23
- 28
- 27
- 42
- 26
- 44
- 7
- 26
- 15
- 26
- 14
- 27
- 18
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths