Question

A book album receives an award when it sells 10,000,000 copies. The book has sold 7,680,000 copies. How many more copies does it need to sell to receive the award? Write your answer in scientific notation.

Answer 1

2.32 x 10^6

Explanation:

10,000,000 - 7,680,000

= 2,320,000

To make standard notation into scientific notation you have to move the decimal however many times to the left to make the number less than ten and greater than one.

Since the decimal is now 2,320,000. <--- here

You have to move it six times to the right to make the number less than ten and greater than one

2.32 So now the decimal is between the 2 and 3, since the decimal was moved 6 places to the left the power of ten will be multiplied by 6.

2.32 x 10^6