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
- 1.101 − 56 =
- 2.322 − 279 =
- 3.302 − 276 =
- 4.511 − 491 =
- 5.60 − 40 =
- 6.101 − 86 =
- 7.127 − 94 =
- 8.205 − 176 =
- 9.105 − 62 =
- 10.304 − 291 =
- 11.525 − 494 =
- 12.57 − 47 =
- 13.509 − 496 =
- 14.116 − 82 =
- 15.71 − 47 =
- 16.108 − 73 =
- 17.125 − 83 =
- 18.99 − 72 =
- 19.57 − 39 =
- 20.71 − 30 =
- 21.77 − 48 =
- 22.507 − 478 =
- 23.1021 − 983 =
- 24.330 − 287 =
- 25.97 − 73 =
- 26.59 − 34 =
- 27.511 − 492 =
- 28.79 − 43 =
- 29.506 − 483 =
- 30.103 − 77 =
- 31.62 − 40 =
- 32.87 − 60 =
- 33.105 − 61 =
- 34.1026 − 991 =
- 35.130 − 79 =
- 36.101 − 71 =
- 37.509 − 498 =
- 38.117 − 96 =
- 39.301 − 282 =
- 40.1027 − 986 =
Answer key
- 45
- 43
- 26
- 20
- 20
- 15
- 33
- 29
- 43
- 13
- 31
- 10
- 13
- 34
- 24
- 35
- 42
- 27
- 18
- 41
- 29
- 29
- 38
- 43
- 24
- 25
- 19
- 36
- 23
- 26
- 22
- 27
- 44
- 35
- 51
- 30
- 11
- 21
- 19
- 41
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths