## Presentation on theme: "Reading & Writing Decimals"— Presentation transcript:

Lets take a look at the places and the values of decimals.
Decimal Place Values Lets take a look at the places and the values of decimals. Tens Ones Tenths Hundredths Thousandths 10 1 .1 .01 .001 . Decimal

Say or write the number before the decimal point. Say or write “and” when you get to the decimal point. Say or write the number after the decimal point. Say or write the name of the place that the decimal ends in. (tenths, hundredths, thousandths)

8,243.67 Example Eight thousand, two hundred forty-three “and”
sixty-seven hundredths

Lets Practice: 16.3 4,764.52 63, two hundred forty-seven and seventeen thousandths sixteen and three tenths Four thousand, seven hundred sixty-four and fifty-two hundredths Sixty-three thousand, nine hundred twenty . and one hundred forty-three hundredths

From Words to Standard Form
Read everything that comes before the word “and.” Write that number down. Place a decimal point at the word “and.” Read the last word of the sentence to see how many decimal places you need. Fill in the decimal places as far to the right as possible with your number, then use zeroes to fill any empty spaces.

Example: Write the following number in standard form: two hundred six and five thousandths
206 . __ __ __ 0 0 5 The word “thousandths” indicates that we need three decimal places. When we clean it up, the answer is

Lets Practice: Six hundred fifty-three and twenty-three hundredths Fourteen and five tenths Three thousand, nine hundred thirty-five and sixty-one thousandths 653 . 23 14 . 5 3,935 . 061

Expanded Form Write the number that appears before the decimal point in expanded form. For numbers that are decimals only, place a zero in the ones place. Also, substitute zeroes for all spaces after the decimal point that come before the digit that you are working with.

Example: Write 13.361 in expanded form.
Remember, deal with the number before the decimal first. + 0.3 + 0.06 + 0.001 10 + 3 Then, do the decimal part.

Lets Practice: . 200 + 40 + 9 + 0.6 + 0.01 + 0.007 10 + 6 + 0.3
16.3 4,764.52 + 0.6 + 0.01 + 0.007 10 + 6 + 0.3 4, + 0.5 + 0.02 .

Lets Practice: 200 + 40 + 9 + 0.6 + 0.01 + 0.007 10 + 6 + 0.3
16.3 4,764.52 10 + 6 + 0.3 4, + 0.5 + 0.02