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
- 1.321 − 292 =
- 2.214 − 181 =
- 3.75 − 35 =
- 4.1016 − 996 =
- 5.98 − 63 =
- 6.1023 − 991 =
- 7.329 − 276 =
- 8.204 − 198 =
- 9.328 − 291 =
- 10.88 − 59 =
- 11.503 − 494 =
- 12.101 − 60 =
- 13.109 − 89 =
- 14.127 − 80 =
- 15.103 − 56 =
- 16.1028 − 988 =
- 17.100 − 76 =
- 18.1021 − 975 =
- 19.79 − 35 =
- 20.315 − 279 =
- 21.312 − 296 =
- 22.326 − 295 =
- 23.103 − 75 =
- 24.59 − 32 =
- 25.1016 − 978 =
- 26.503 − 486 =
- 27.215 − 193 =
- 28.73 − 26 =
- 29.100 − 58 =
- 30.1015 − 976 =
- 31.1012 − 977 =
- 32.79 − 34 =
- 33.1010 − 988 =
- 34.1004 − 977 =
- 35.503 − 481 =
- 36.63 − 32 =
- 37.108 − 92 =
- 38.108 − 77 =
- 39.510 − 480 =
- 40.111 − 79 =
Answer key
- 29
- 33
- 40
- 20
- 35
- 32
- 53
- 6
- 37
- 29
- 9
- 41
- 20
- 47
- 47
- 40
- 24
- 46
- 44
- 36
- 16
- 31
- 28
- 27
- 38
- 17
- 22
- 47
- 42
- 39
- 35
- 45
- 22
- 27
- 22
- 31
- 16
- 31
- 30
- 32
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths