Reading & Writing Whole Numbers
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Transcript of Reading & Writing Whole Numbers
Reading & Writing Whole Numbers
Vocabulary:1. Whole Number – The counting numbers 0, 1, 2, 3, 4,
5, 6, 7, 8, and 9. Any number with a negative sign, decimal point or a fraction is NOT a whole number.
2. Standard Form – The common way of writing a number using digits.
Example: 23, 119
3. Word Form – A way of using words to write a number.
Example: Twenty-three thousand, one hundred nineteen
4. Expanded Form – A way to write a number showing the place value of each digit.
Example: 20,000 + 3,000 + 100 + 10 + 9
Real Life Example:
Review:
Whole Numbers Decimal (“ths”)
,
HundredsThousands
Comma
100
Lets review the places and the values of whole numbers.
1,000
Ten Thousands
10,000
Tens
10 1
Ones
Whole Number Place Values
Hundred Thousand
s
100,000
.Decimal
Point
Thousands Ones
Reading Whole Numbers:
1. Read whole numbers from left to right.
2. When you reach a comma, say the name of the period you passed.
385,602Three hundred eighty five thousand, six hundred
two
Standard Form
• Standard form is the normal way to write a number using digits.
74,832
Ex: Write the number in standard form.
1. 20,000 + 7,000 + 500 + 30 + 8
27,538
2. Three hundred five thousand, six hundred twenty-two
305,622
If there is a place value spot with a missing value, use a 0 to hold it’s spot.
Expanded Form
1. Expanded form is a way to write a number showing the place value of each digit.
74,832
70,000 +
4,000 +
800 +30 +2
Ex: Write the number in expanded form.
1.685,977600,000 + 80,000 + 5,000 + 900 + 70
+ 7
2.43,09840,000 + 3,000 + 90 + 8
Remember, 0’s do not have a value so we do not include them in expanded form.
Word Form
1. Word form is a way of using words to write a number.
74,832Seventy-four thousand, eight hundred
thirty-two
Ex: Write the number in word form.
1.780,421
Seven hundred eighty thousand, four hundred twenty-one
2.31,775
Thirty-one thousand, seven hundred seventy-five
We put commas in word form numbers
just like we do in standard form numbers.
Practice:
1. What is three hundred seventy-four thousand, one hundred nineteen in standard form?
2. Mount Everest is 29,028 feet above sea level. Write this number in expanded form.
Practice:
1. What is 560,314 in expanded form?
2. The White House is where the President lives. It is located in our nation’s capital, Washington DC. The population there is 591,833. What is that in word form?
Practice:
1. What is 37,975 in word form?
2. The land area of Tennessee is forty-one thousand, two hundred twenty square miles. What is Tennessee’s land area in standard form?