Exact multiple of ten
70 is exactly 7 tens. Its ones digit is zero, so no ones word or hyphen is added.
70 in words: seventy
70
In words
Seventy
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How 70 is built
Pattern: Exact multiple of ten
70 is exactly 7 tens. Its ones digit is zero, so no ones word or hyphen is added.
70 has one non-zero place value, so its expanded form is unchanged.
Digit and place-value table
| Digit | Position | Value | Value in words |
|---|---|---|---|
| 7 | tens | 70 | seventy |
| 0 | ones | 0 | not spoken |
Reading the number in groups
| Group | Digits | Reading |
|---|---|---|
| units group | 70 | seventy |
Why 70 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
- 70 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 70, written “seventy”.