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
- 1.530 − 495 =
- 2.319 − 283 =
- 3.64 − 27 =
- 4.118 − 83 =
- 5.517 − 498 =
- 6.54 − 26 =
- 7.216 − 180 =
- 8.62 − 33 =
- 9.116 − 83 =
- 10.520 − 491 =
- 11.111 − 87 =
- 12.304 − 295 =
- 13.110 − 80 =
- 14.524 − 493 =
- 15.516 − 477 =
- 16.514 − 498 =
- 17.122 − 85 =
- 18.65 − 44 =
- 19.101 − 91 =
- 20.506 − 480 =
- 21.106 − 75 =
- 22.313 − 296 =
- 23.105 − 73 =
- 24.1015 − 976 =
- 25.58 − 46 =
- 26.64 − 48 =
- 27.1028 − 990 =
- 28.53 − 43 =
- 29.506 − 496 =
- 30.86 − 65 =
- 31.96 − 65 =
- 32.522 − 479 =
- 33.301 − 277 =
- 34.106 − 60 =
- 35.227 − 195 =
- 36.101 − 81 =
- 37.114 − 88 =
- 38.102 − 74 =
- 39.505 − 489 =
- 40.221 − 180 =
Answer key
- 35
- 36
- 37
- 35
- 19
- 28
- 36
- 29
- 33
- 29
- 24
- 9
- 30
- 31
- 39
- 16
- 37
- 21
- 10
- 26
- 31
- 17
- 32
- 39
- 12
- 16
- 38
- 10
- 10
- 21
- 31
- 43
- 24
- 46
- 32
- 20
- 26
- 28
- 16
- 41
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths