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?