100 in words: one hundred

100
In words

One hundred

How 100 is built

Pattern: Exact hundred

100 contains 1 complete hundred. Both following positions are zero, so the spelling ends with “hundred”.

100 has one non-zero place value, so its expanded form is unchanged.

Digit and place-value table

Digit Position Value Value in words
1 hundreds 100 one hundred
0 tens 0 not spoken
0 ones 0 not spoken

Reading the number in groups

Group Digits Reading
units group 100 one hundred

Why 100 is written this way

Exact hundred

100 contains 1 complete hundred. Both following positions are zero, so the spelling ends with “hundred”.

Silent zero positions

The tens and ones positions contain zero. They preserve place value in the numeral but add no spoken word.

Number structure

  • 100 has 3 digits and 1 place-value group.
  • 1 position contributes a spoken value; 2 zero positions are silent.
  • Its hundreds component is “one hundred”; its final two-digit group is 00.