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
- 1.211 − 186 =
- 2.303 − 277 =
- 3.70 − 47 =
- 4.80 − 34 =
- 5.79 − 45 =
- 6.61 − 46 =
- 7.89 − 66 =
- 8.512 − 492 =
- 9.204 − 180 =
- 10.1006 − 993 =
- 11.88 − 67 =
- 12.52 − 48 =
- 13.227 − 194 =
- 14.72 − 42 =
- 15.99 − 66 =
- 16.51 − 45 =
- 17.105 − 78 =
- 18.513 − 497 =
- 19.93 − 73 =
- 20.68 − 34 =
- 21.68 − 25 =
- 22.318 − 295 =
- 23.53 − 32 =
- 24.96 − 57 =
- 25.503 − 475 =
- 26.112 − 94 =
- 27.316 − 296 =
- 28.92 − 60 =
- 29.52 − 47 =
- 30.76 − 35 =
- 31.69 − 26 =
- 32.318 − 292 =
- 33.505 − 479 =
- 34.1024 − 994 =
- 35.62 − 48 =
- 36.76 − 29 =
- 37.506 − 493 =
- 38.123 − 91 =
- 39.67 − 31 =
- 40.65 − 32 =
Answer key
- 25
- 26
- 23
- 46
- 34
- 15
- 23
- 20
- 24
- 13
- 21
- 4
- 33
- 30
- 33
- 6
- 27
- 16
- 20
- 34
- 43
- 23
- 21
- 39
- 28
- 18
- 20
- 32
- 5
- 41
- 43
- 26
- 26
- 30
- 14
- 47
- 13
- 32
- 36
- 33
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths