Lesson 1, Topic 2
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# Counting in Millions, Billions and Trillions

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We use the words million, billion, and trillion for large numbers. They are connected as follows:

1 million = 1 thousand x 1000
1 billion = 1 million x 1000
1 trillion = 1 million x 1000

### Example 1

Write 2 468 900 in words

Solution

2 000 000 = Two million
468 000 = Four hundred and sixty-eight thousand
900 = Nine hundred

Answer: 2 468 900 = Two million, four hundred and sixty-eight thousand, nine hundred.

### Example 2

Write the number 3 184 200 940 in words.

Solution

3 000 000 000 = Three billion
184 000 000 = One hundred and eighty-four million
200 000 = Two hundred thousand
900 = Nine hundred
40 = Forty

Answer: 3 184 200 940 – Three billion, one hundred and eighty-four million, two hundred thousand, nine hundred and forty.

### Example 3

Write eleven trillion eight hundred and one billion, three million, five thousand, and ninety-eight in figures.

Solution

Eleven trillion = 11  000  000  000  000
Eight hundred and one billion = 801  000  000  000
Three million = 3  000  000
Five thousand and ninety-eight = 5 098

Answer: Eleven trillion eight hundred and one billion, three million, five thousand, and ninety-eight in figures

= 11,801,003,005,090

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