Exact multiple of ten
80 is exactly 8 tens. Its ones digit is zero, so no ones word or hyphen is added.
80 in words: eighty
80
In words
Eighty
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How 80 is built
Pattern: Exact multiple of ten
80 is exactly 8 tens. Its ones digit is zero, so no ones word or hyphen is added.
80 has one non-zero place value, so its expanded form is unchanged.
Digit and place-value table
| Digit | Position | Value | Value in words |
|---|---|---|---|
| 8 | tens | 80 | eighty |
| 0 | ones | 0 | not spoken |
Reading the number in groups
| Group | Digits | Reading |
|---|---|---|
| units group | 80 | eighty |
Why 80 is written this way
Silent zero positions
The ones position contains zero. It preserves place value in the numeral but adds no spoken word.
Number structure
- 80 has 2 digits and 1 place-value group.
- 1 position contributes a spoken value; 1 zero position is silent.
- Its single two-digit group is 80, written “eighty”.