Independent spelling from 10 to 19
18 belongs to the 10–19 group. English gives this range independent spellings rather than building each answer from a separate tens word and ones word.
18 in words: eighteen
18
In words
Eighteen
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How 18 is built
Pattern: Independent spelling from 10 to 19
18 belongs to the 10–19 group. English gives this range independent spellings rather than building each answer from a separate tens word and ones word.
Digit and place-value table
| Digit | Position | Value | Value in words |
|---|---|---|---|
| 1 | tens | 10 | ten |
| 8 | ones | 8 | eight |
Reading the number in groups
| Group | Digits | Reading |
|---|---|---|
| units group | 18 | eighteen |
Why 18 is written this way
Number structure
- 18 has 2 digits and 1 place-value group.
- Every digit position contributes a spoken value.
- Its single two-digit group is 18, written “eighteen”.