Two Decimal Digits - Hundredths
Free decimals lesson plan from HomeschoolMath.net

You have seen this number line in the previous lesson. In it, the distance from 0.0 to 0.1 is one tenth.

Now, we will DRAW nine tiny lines between 0.0 and 0.1, dividing that distance into TEN new parts.

Now, repeat this process between 0.2 and 0.3, dividing that distance into TEN new parts.

If you repeated this process between 0.3 and 0.4, and then between 0.4 and 0.5, etc.,
into how many parts would you divide the number line from 0 to 1? ________ parts

These new parts are therefore hundredth parts, or hundredths.

The number line below zooms in to the previous number line, from 0 to a little past 0.3.  The interval from 0 to 0.1 has been divided into ten parts, and similarly the interval from 0.1 to 0.2, etc.

Each interval is one hundredth. Now look at the numbers below the tick-marks.
They have two digits after the decimal point − or we say they have two decimal digits.

The number 0.28 is read as twenty-eight hundredths and is the same as

28 100

.

The number 0.06 is read as six hundredths and is the same as

6 100

.

The number 2.34 is read as two and thirty-five hundredths and is the same as 2

34 100

.

We can also illustrate hundredths by dividing a square into hundred parts.

This represents 32 hundredths. 32 100  = 0.32

This is twenty hundredths. 20 100  = 0.20 It is also two tenths: 2 10  = 0.2, because each of the 10 columns is one-tenth of the whole.