1. Place Value with Decimals

2. How do I know what kind of decimal it is?
The name of a decimal is determined by the number of places to the right of the decimal point
Number of Places
Decimal Name
Example 1
tenths
0.7 2
hundredths
0.05 3
thousandths
0.016

3. What are mixed decimals?
Mixed decimals are numbers with both whole numbers and decimals
The name of a whole number is determined by the number of places to the left of the decimal point
In the number , 1 is in the hundreds place, 2 is in the tens place, 8 is in the ones place, 7 is in the tenths place, 6 is in the hundredths place, and 5 is in the thousandths place

4. How do you read decimals?
To read a decimal correctly, first find the decimal point
Whole numbers are to the left of the decimal point; any numbers to the right of a decimal point form a decimal fraction
Say “and” for the decimal point
The decimal is read as “two thousand, one hundred sixty-four and five hundred eleven thousandths”

5. Zeros after the decimal point
Writing extra zeros after the decimal point does not change the value!
The decimals 0.2, 0.20, and are equivalent decimals

6. Practice
Here are some practice problems in which I will work through with you to make sure that you understand the main concepts covered.

7. Exercise 1 Write the decimals. Five thousandths
Ninety-four thousandths
Three hundred thirty-six and sixty-nine hundredths

8. Exercise 2 Write each decimal in words. 7884.011 5592.4 4.203 612.250
10.44

9. Exercise 3
In what place (on the place value chart) is the underlined digit? Write the answer.
1.475
3.763

10. Exercise 4 Write a decimal that has the same number. 0.2 5.51 410.6

11. This powerpoint was kindly donated to www.worldofteaching.com
Is home to over a thousand powerpoints submitted by teachers. This a free site. Please visit and I hope it will help in your teaching 11