Place positions of big numbers

Billions				Millions				Thousands				Ones
100B	10B	1B	,	100M	10M	1M	,	100^Th	10^Th	1Th	,	100	10	1
		7	,	5	0	0	,	0	7	5	,	3	0	0
	6	8	,	6	5	0	,	2	1	5	,	4	7	2
1	4	3	,	2	0	0	,	7	4	5	,	8	5	0

The number in row 1 is: 7,500,075,300 or

seven billion, five-hundred million, 75 thousand, three hundred.

The number in the second row is: 68,650,215,472 or

sixty-eight billion, six- hundred fifty-eight million, two-hundred fifteen thousand, four-hundred seventy-two.

The number in the third row is: 143, 200, 745, 850 or

One hundred forty-three billion, two-hundred million, seven-hundred forty-five thousand, eight-hundred fifty.

Note: As you move to the left, each column is 10 times the number in the previous column.

Examples:

1 billion is 10 times 100 million

1 billion is 100 times 10 million

1 billion is 1,000 times 1 million

Powers of 10

Another way of writing big numbers is called the exponential notation.

We write: 10^3, which equals 10 * 10 * 10 which equals 1,000.

We also say 10 raised to the 3^rd power.

You can see that we can write the number 1 followed by the number of zeroes that ten is raised to.

10⁵ = 10 * 10 * 10 * 10 * 10 = 100,000

1 billion is 10 raised to the 9^th power, or 1 followed by 9 zeroes:

1,000,000,000