| Objects | How many? |
|---|---|
| ๐๐๐๐๐๐ | |
| โฝโฝโฝโฝโฝโฝโฝโฝ | |
| ๐๐๐๐๐๐๐๐๐๐๐ | |
| ๐๐๐๐๐๐๐๐๐๐๐๐๐๐ | |
| ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ |
| Before | Number | After |
|---|---|---|
| 7 | ||
| 14 | ||
| 21 | ||
| 10 | ||
| 17 |
| Number | < = > | Number |
|---|---|---|
| 4 | 9 | |
| 8 | 8 | |
| 12 | 6 | |
| 15 | 18 | |
| 20 | 20 | |
| 10 | 2 |
Count by 2s: 6, 8, , 12, , 16, , 20, , 24
Count by 5s: 10, 15, , 25, , 35, , 45, , 55
Count by 10s: 5, 15, , 35, , 55, , 75, , 95