-8
4.5 x 102 = 450
23 000. This is standard form and should be written as: 23 x 10^2. (The ^ denotes an exponent.)
103 or 1000
3 times 10 to the 8th power divided by 7 times 10 to the negative 7th power equates to: 4.28571428571
790
114
800
8,730
It is simply: 10 times 10 = 100
-8
8.2 times 10 to the 2nd power
It is not, it is smaller.
2.5x103 = 25003.5x102 = 3502500 + 350 = 2850 which is 2.95x103
9.2 x 102 = 920
4.5 x 102 = 450
(5*103)+(3*102) = 5300