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
- 1.1022 − 994 =
- 2.316 − 284 =
- 3.77 − 48 =
- 4.318 − 277 =
- 5.203 − 195 =
- 6.130 − 92 =
- 7.112 − 88 =
- 8.101 − 69 =
- 9.203 − 192 =
- 10.1014 − 997 =
- 11.1004 − 997 =
- 12.1016 − 981 =
- 13.86 − 66 =
- 14.319 − 287 =
- 15.124 − 98 =
- 16.96 − 74 =
- 17.66 − 28 =
- 18.325 − 285 =
- 19.79 − 48 =
- 20.103 − 84 =
- 21.103 − 71 =
- 22.108 − 86 =
- 23.1008 − 992 =
- 24.501 − 495 =
- 25.228 − 192 =
- 26.201 − 179 =
- 27.59 − 29 =
- 28.520 − 495 =
- 29.104 − 93 =
- 30.109 − 90 =
- 31.69 − 36 =
- 32.80 − 48 =
- 33.501 − 490 =
- 34.113 − 81 =
- 35.78 − 48 =
- 36.216 − 184 =
- 37.206 − 192 =
- 38.312 − 279 =
- 39.86 − 63 =
- 40.96 − 69 =
Answer key
- 28
- 32
- 29
- 41
- 8
- 38
- 24
- 32
- 11
- 17
- 7
- 35
- 20
- 32
- 26
- 22
- 38
- 40
- 31
- 19
- 32
- 22
- 16
- 6
- 36
- 22
- 30
- 25
- 11
- 19
- 33
- 32
- 11
- 32
- 30
- 32
- 14
- 33
- 23
- 27
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths