Question

Think: What is the problem?

Ms. Meyers measured the edge of
her dining table to the hundredths
of a meter. The edge of the table
measured 32.15 meters. Write her
measurement in word form, unit
form, and expanded form using
fractions and decimals.

Answer 1

-Word form:
`Thirty-two\ and\ fifteen\ houndreths`

-Unit form:
`3\ tens\, 2\ ones, 1\ tenth,\ 5\ hundreths`

-Expanded form:

Using fractions:

`3*10+2*1+(1)/(10)+(5)/(100)`

Using decimals:

`3*10+2*1+1*0.1+5*0.01`

Step-by-step explanation:

You can observe that the measure of the edge of the dining table is a decimal number:

`32.15\ meters`

Word form

- Write in words the digits to the left of the decimal point as a whole number.

- The decimal point expressed in words is "and".

- Write in word the digits to the right of the decimal point as a whole number.

- Write in words the place value of the last digit to the right of the decimal point.

Therefore, this is:

`Thirty-two\ and\ fifteen\ houndreths`

Unit form

Write the place value of each digit within the number:

`3\ tens\, 2\ ones, 1\ tenth,\ 5\ hundreths`

Expanded form

Write the place value of each digit.

Using fractions:

`3*10+2*1+(1)/(10)+(5)/(100)`

Using decimals:

`3*10+2*1+1*0.1+5*0.01`