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
- 1.516 − 475 =
- 2.121 − 83 =
- 3.1007 − 976 =
- 4.226 − 185 =
- 5.1030 − 989 =
- 6.59 − 38 =
- 7.1005 − 996 =
- 8.520 − 488 =
- 9.328 − 288 =
- 10.113 − 86 =
- 11.215 − 177 =
- 12.321 − 275 =
- 13.506 − 485 =
- 14.1024 − 996 =
- 15.317 − 278 =
- 16.321 − 291 =
- 17.58 − 32 =
- 18.57 − 41 =
- 19.1008 − 986 =
- 20.518 − 497 =
- 21.307 − 292 =
- 22.71 − 33 =
- 23.322 − 284 =
- 24.108 − 59 =
- 25.529 − 491 =
- 26.1028 − 996 =
- 27.105 − 67 =
- 28.523 − 493 =
- 29.521 − 495 =
- 30.54 − 44 =
- 31.523 − 486 =
- 32.72 − 38 =
- 33.60 − 34 =
- 34.225 − 188 =
- 35.1026 − 991 =
- 36.521 − 496 =
- 37.503 − 475 =
- 38.83 − 68 =
- 39.106 − 75 =
- 40.85 − 58 =
Answer key
- 41
- 38
- 31
- 41
- 41
- 21
- 9
- 32
- 40
- 27
- 38
- 46
- 21
- 28
- 39
- 30
- 26
- 16
- 22
- 21
- 15
- 38
- 38
- 49
- 38
- 32
- 38
- 30
- 26
- 10
- 37
- 34
- 26
- 37
- 35
- 25
- 28
- 15
- 31
- 27
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths