Question

how do we write this in standard form 1.2345 x 10 ^8 ?

Answer 1

http://www.wolframalpha.com/input/?i=1.2345+x+10+%5E8+

Answer 2

do they show u how to do it ?

Answer 3

do you know what number is 10^8?

Answer 4

or let's say what number is 10^2?

Answer 5

1.2345 x 10 ^8

To get the standard form, just expand the 10^8 and then multiply
10^8 = 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 = 100000000
so
1.2345 x 10 ^8 = 1.2345 x 100000000 = 123450000.0000
now just ignore the decimal and the zeros after that and you get the final answer
1.2345 x 10 ^8 = 123450000

Answer 6

it's gona b 123,450,000 or something. all u have 2 do is take your pencil and do this :

excuse the handwriting :)