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
- 1.316 − 277 =
- 2.77 − 37 =
- 3.63 − 43 =
- 4.101 − 65 =
- 5.81 − 56 =
- 6.507 − 483 =
- 7.113 − 79 =
- 8.128 − 94 =
- 9.214 − 191 =
- 10.212 − 187 =
- 11.72 − 27 =
- 12.88 − 62 =
- 13.52 − 43 =
- 14.1026 − 976 =
- 15.51 − 46 =
- 16.303 − 278 =
- 17.100 − 64 =
- 18.127 − 94 =
- 19.528 − 482 =
- 20.52 − 30 =
- 21.214 − 192 =
- 22.311 − 276 =
- 23.329 − 280 =
- 24.223 − 177 =
- 25.102 − 92 =
- 26.518 − 491 =
- 27.63 − 39 =
- 28.511 − 486 =
- 29.310 − 287 =
- 30.523 − 476 =
- 31.80 − 30 =
- 32.61 − 43 =
- 33.95 − 63 =
- 34.505 − 497 =
- 35.82 − 78 =
- 36.323 − 287 =
- 37.1025 − 993 =
- 38.55 − 31 =
- 39.95 − 74 =
- 40.105 − 68 =
Answer key
- 39
- 40
- 20
- 36
- 25
- 24
- 34
- 34
- 23
- 25
- 45
- 26
- 9
- 50
- 5
- 25
- 36
- 33
- 46
- 22
- 22
- 35
- 49
- 46
- 10
- 27
- 24
- 25
- 23
- 47
- 50
- 18
- 32
- 8
- 4
- 36
- 32
- 24
- 21
- 37
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths