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 128.765, 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 2164.511 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 0.200 are equivalent decimals
6. HERE ARE SOME PRACTICE PROBLEMS
IN WHICH I WILL WORK THROUGH WITH
YOU TO MAKE SURE THAT YOU
UNDERSTAND THE MAIN CONCEPTS
COVERED.
Practice
7. Exercise 1
Write the decimals.
1. Five thousandths
2. Ninety-four thousandths
3. Three hundred thirty-six and sixty-nine hundredths
8. Exercise 2
Write each decimal in words.
1. 7884.011
2. 5592.4
3. 4.203
4. 612.250
5. 10.44
9. Exercise 3
In what place (on the place value chart) is the
underlined digit? Write the answer.
1. 1.475
2. 3.763
3. 7780.215
4. 412.407
5. 902.103
10. Exercise 4
Write a decimal that has the same number.
1. 0.2
2. 5.51
3. 410.6
4. 753.809
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