what is the scientific notations of ?

283,000,000

264,701

0.019

0.000007

0.000010035

264.9

150X10^2

#1: When doing scirntific notation, the leading number is between 1 and 10.

Therefore, we want 2.83. How many digits are to the right of the 2? 8, right?

2.83\times{10^{8}}


#4: .000007

7\times{10^{-6}}

See?