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
- 1.208 − 186 =
- 2.100 − 74 =
- 3.104 − 75 =
- 4.309 − 283 =
- 5.115 − 96 =
- 6.104 − 64 =
- 7.108 − 85 =
- 8.54 − 47 =
- 9.513 − 495 =
- 10.307 − 297 =
- 11.104 − 60 =
- 12.104 − 94 =
- 13.212 − 196 =
- 14.82 − 74 =
- 15.116 − 78 =
- 16.116 − 84 =
- 17.502 − 476 =
- 18.53 − 37 =
- 19.509 − 480 =
- 20.56 − 44 =
- 21.518 − 475 =
- 22.226 − 176 =
- 23.61 − 46 =
- 24.91 − 69 =
- 25.1019 − 985 =
- 26.1016 − 991 =
- 27.105 − 97 =
- 28.320 − 289 =
- 29.108 − 67 =
- 30.326 − 282 =
- 31.220 − 186 =
- 32.81 − 65 =
- 33.301 − 279 =
- 34.228 − 188 =
- 35.504 − 496 =
- 36.1019 − 979 =
- 37.1005 − 983 =
- 38.103 − 74 =
- 39.313 − 276 =
- 40.228 − 192 =
Answer key
- 22
- 26
- 29
- 26
- 19
- 40
- 23
- 7
- 18
- 10
- 44
- 10
- 16
- 8
- 38
- 32
- 26
- 16
- 29
- 12
- 43
- 50
- 15
- 22
- 34
- 25
- 8
- 31
- 41
- 44
- 34
- 16
- 22
- 40
- 8
- 40
- 22
- 29
- 37
- 36
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths