$2.5$
Terms
| Term | This example | Why |
|---|---|---|
| natural numbers (from 0) | ✗ | |
| whole numbers | ✗ | $2.5$ is not a whole number or a natural number, because it has a fractional part. |
| Term | This example | Why |
|---|---|---|
| natural numbers (from 0) | ✗ | |
| whole numbers | ✗ | $2.5$ is not a whole number or a natural number, because it has a fractional part. |