What is 1 AU in cm?

Answer 1

First review what you know:

149,598,000 kilometers = 1 AU (astronomical unit)

1000 meters in a kilometer

100 centimeters in a meter

(remember centi means 100 and kilo means 1000)

So 1000*100 = 100,000 centimeters in a kilometer

100,000 x 149,598,000 = 14,959,800,000,000

Now that is a really big number so scientific notation is a good way to display the result (not the rounding up):

1.496x10^13 centimeters in an AU