Question

How do you use exponents to write 7.5 million in expanded notation?

Answer 1

See: http://www.mathsisfun.com/definitions/expanded-notation.html

`(7xx1,000,000) + (5 xx 100,000)`

Explanation:

Writing the term "7.5 million" in standard notation is: 7,500,000

To start then this can be expanded to:

`7,000,000 + 500,000 ->`

`(7xx1,000,000) + (5 xx 100,000)`