Question

What is 309,099,990 in expanded form

Answer 1

get the VALUE OF EACH DIGIT:300,000,000+9,000,000+90,000+9,000+900+90=?
ZERO'S DONT COUNT

Answer 2

300,000,000+9,000,000+90,000+9,000+900+90

Explanation:

309,099,990

As per the international system of numeration the numerals are divided as per 100 million, 10 million , million,100 thousand , 10 thousand, thousand, hundred , tens ,ones.

309,099,990

After 3, count the number of digits

Number of digits are=9 digits

Multiply 3 by
`10^(9)`

similarly , after 9

To convert into expanded form, repeat the process to ones digit

309,099,990= 33×
`10^(8)`+9×
`10^(6)`+9×
`10^(4)`+9×
`10^(3)`+9×
`10^(2)`+0

Hence,the correct answer is 300,000,000+9,000,000

+90,000+9,000+900+90