Name each number in two different ways.
90,000,000
40,000
90 million
40 thousand
9.0 * 10^7
4.0 * 10^4
To name each number in two different ways, we can use both the standard and expanded form.
1. 90,000,000:
Standard form: Ninety million
Expanded form: 9 x 10,000,000 or 90 x 1,000,000
2. 40,000:
Standard form: Forty thousand
Expanded form: 4 x 10,000