Read.

Let's write numbers in expanded form to standard form

70 000 000 000 + 5 000 000 000 + 80 000 000 + 4 000 000 + 20 000 + 6 000

CHECK YOUR

UNDERSTANDING

Try These!

Practice

WELL DONE!

**Reading and Writing Numbers**

through Billions

through Billions

* Write the standard form of the number

75 084 026 000.

* Read the number

75 084 026 000.

75 084 026 000

* Give the place value of each digit, then the value of each digit.

921

2 549

521 730

54 028

5 893 142

Problem:

The total student population in the

Philippines according to the Philippine

Yearbook 1999 is sixteen million, three

hundred nine thousand, five hundred

fifty-six.

Answer these.

a. How is this number written in numerals?

b. How are the digits grouped?

c. Where do we start grouping the number by 3s?

d. How are the three-digit number groups separated from the other number groups?

e. Where does the value of each period as well as each digit in the periods depend?

f. What is the role of zero in a number?

A. Give the place value of the

digit 5 in the following numbers.

1) 485 921

2) 372 549

3) 46 521 730

4) 182 923 654 028

5) 7 245 893 142

B. Write the following numerals in words.

1) 4 627 292

2) 85 215 941

3) 365 847 303

4) 9 000 035 000

5) 10 400 040 004

How many periods

are there in a

billion?

What are the periods

in a billion?

Where do you start

reading numbers?

How is each period

separated from

the other?

What is placed after

each period when writing

numbers in words?

Think and

Apply

1) Write the following numbers in words:

a) 2 750 000

b) 3 726 513

c) 43 000 210

d) 412 876 010

e) 234 126 143

2) Write the numerals of the following:

a) three million, seven hundred twenty-three thousand, one hundred twenty

b) five hundred thirty-five million, two hundred forty-four

c) four thousand, three

d) six hundred eighty thousand, eight hundred two

e) eight hundred forty-seven million, three hundred fifty-six thousand, four hundred fifteen

3) Write the value of the colored red digit in each number.

a) 3 100 423 000

b) 9 287 600

c) 17 386 001 000

d) 412 876 010 051

e) 234 126 143

Test Yourself

A) Write each number in standard form.

1) 75 billion, 84 million, 26 thousand

2) 149 billion, 400 thousand, twelve

3) 4 billion, 180 thousand

4) thirty-five million, ten thousand

5) sixty billion

B)How many times as great is the colored red 4 as the 4 that is not?

1) 643 234

2) 4 872 046

3) 42 545 211

4) 234 126 134

5) 3 014 249