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
- 1.74 − 31 =
- 2.105 − 77 =
- 3.226 − 188 =
- 4.79 − 42 =
- 5.52 − 48 =
- 6.229 − 197 =
- 7.91 − 60 =
- 8.81 − 77 =
- 9.217 − 191 =
- 10.99 − 78 =
- 11.91 − 68 =
- 12.202 − 180 =
- 13.1009 − 995 =
- 14.113 − 91 =
- 15.1001 − 988 =
- 16.1001 − 986 =
- 17.506 − 496 =
- 18.201 − 180 =
- 19.518 − 490 =
- 20.515 − 497 =
- 21.78 − 31 =
- 22.524 − 493 =
- 23.78 − 41 =
- 24.306 − 288 =
- 25.322 − 292 =
- 26.509 − 488 =
- 27.211 − 193 =
- 28.90 − 68 =
- 29.56 − 35 =
- 30.230 − 194 =
- 31.128 − 88 =
- 32.211 − 187 =
- 33.519 − 488 =
- 34.98 − 61 =
- 35.117 − 76 =
- 36.81 − 56 =
- 37.301 − 278 =
- 38.528 − 486 =
- 39.314 − 286 =
- 40.313 − 296 =
Answer key
- 43
- 28
- 38
- 37
- 4
- 32
- 31
- 4
- 26
- 21
- 23
- 22
- 14
- 22
- 13
- 15
- 10
- 21
- 28
- 18
- 47
- 31
- 37
- 18
- 30
- 21
- 18
- 22
- 21
- 36
- 40
- 24
- 31
- 37
- 41
- 25
- 23
- 42
- 28
- 17
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths