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
- 1.310 − 295 =
- 2.87 − 68 =
- 3.51 − 32 =
- 4.82 − 75 =
- 5.202 − 191 =
- 6.76 − 29 =
- 7.101 − 58 =
- 8.102 − 94 =
- 9.205 − 197 =
- 10.1003 − 977 =
- 11.227 − 198 =
- 12.107 − 63 =
- 13.83 − 55 =
- 14.1025 − 977 =
- 15.304 − 295 =
- 16.218 − 185 =
- 17.86 − 73 =
- 18.329 − 297 =
- 19.75 − 46 =
- 20.517 − 496 =
- 21.1020 − 989 =
- 22.229 − 193 =
- 23.505 − 482 =
- 24.57 − 37 =
- 25.1030 − 977 =
- 26.222 − 185 =
- 27.323 − 286 =
- 28.99 − 72 =
- 29.76 − 28 =
- 30.514 − 489 =
- 31.129 − 98 =
- 32.105 − 75 =
- 33.504 − 498 =
- 34.106 − 97 =
- 35.89 − 78 =
- 36.503 − 475 =
- 37.79 − 48 =
- 38.69 − 44 =
- 39.1008 − 990 =
- 40.206 − 188 =
Answer key
- 15
- 19
- 19
- 7
- 11
- 47
- 43
- 8
- 8
- 26
- 29
- 44
- 28
- 48
- 9
- 33
- 13
- 32
- 29
- 21
- 31
- 36
- 23
- 20
- 53
- 37
- 37
- 27
- 48
- 25
- 31
- 30
- 6
- 9
- 11
- 28
- 31
- 25
- 18
- 18
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths