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
- 1.87 − 56 =
- 2.201 − 198 =
- 3.1004 − 992 =
- 4.85 − 56 =
- 5.208 − 184 =
- 6.501 − 486 =
- 7.521 − 495 =
- 8.1025 − 998 =
- 9.67 − 35 =
- 10.55 − 34 =
- 11.324 − 294 =
- 12.122 − 83 =
- 13.1007 − 990 =
- 14.508 − 496 =
- 15.130 − 95 =
- 16.82 − 66 =
- 17.69 − 39 =
- 18.1024 − 986 =
- 19.69 − 48 =
- 20.60 − 43 =
- 21.78 − 42 =
- 22.306 − 289 =
- 23.510 − 490 =
- 24.111 − 84 =
- 25.81 − 58 =
- 26.516 − 483 =
- 27.523 − 478 =
- 28.306 − 285 =
- 29.201 − 189 =
- 30.91 − 76 =
- 31.317 − 295 =
- 32.77 − 46 =
- 33.312 − 294 =
- 34.229 − 188 =
- 35.84 − 60 =
- 36.110 − 98 =
- 37.86 − 62 =
- 38.89 − 76 =
- 39.115 − 83 =
- 40.53 − 40 =
Answer key
- 31
- 3
- 12
- 29
- 24
- 15
- 26
- 27
- 32
- 21
- 30
- 39
- 17
- 12
- 35
- 16
- 30
- 38
- 21
- 17
- 36
- 17
- 20
- 27
- 23
- 33
- 45
- 21
- 12
- 15
- 22
- 31
- 18
- 41
- 24
- 12
- 24
- 13
- 32
- 13
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths