Which number is greater than 7.3 * 10^8

A) 1.135 * 10^8

B) 3.3 * 10^9

C) 8.46 * 10^7

D) 9.2 * 10^6

Question

Which number is greater than 7.3 * 10^8

A) 1.135 * 10^8

B) 3.3 * 10^9

C) 8.46 * 10^7

D) 9.2 * 10^6

anonymous · Answer

One of those answer choices has more digits than the other choices and is therefore the largest.
Each one starts with one digit on the left of the dot. When you raise 10 to a power, that means you move the dot to the right that many places and fill in the gap with 0's. So, for example, choice A will be 113500000 after moving to the right 8 places. Which answer will have the most digits? It doesn't matter what the first digit is if it has more digits than the other choices