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
- 1.309 − 294 =
- 2.1016 − 984 =
- 3.327 − 283 =
- 4.104 − 62 =
- 5.73 − 37 =
- 6.99 − 56 =
- 7.220 − 195 =
- 8.128 − 93 =
- 9.87 − 78 =
- 10.1004 − 988 =
- 11.103 − 91 =
- 12.1012 − 997 =
- 13.1001 − 994 =
- 14.65 − 42 =
- 15.1024 − 989 =
- 16.1014 − 980 =
- 17.1028 − 997 =
- 18.126 − 84 =
- 19.228 − 196 =
- 20.96 − 56 =
- 21.80 − 43 =
- 22.80 − 38 =
- 23.302 − 280 =
- 24.228 − 197 =
- 25.314 − 288 =
- 26.226 − 179 =
- 27.308 − 288 =
- 28.510 − 479 =
- 29.305 − 296 =
- 30.106 − 97 =
- 31.122 − 98 =
- 32.109 − 98 =
- 33.57 − 29 =
- 34.1027 − 988 =
- 35.1008 − 989 =
- 36.82 − 61 =
- 37.515 − 490 =
- 38.101 − 61 =
- 39.92 − 64 =
- 40.1028 − 980 =
Answer key
- 15
- 32
- 44
- 42
- 36
- 43
- 25
- 35
- 9
- 16
- 12
- 15
- 7
- 23
- 35
- 34
- 31
- 42
- 32
- 40
- 37
- 42
- 22
- 31
- 26
- 47
- 20
- 31
- 9
- 9
- 24
- 11
- 28
- 39
- 19
- 21
- 25
- 40
- 28
- 48
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths