Question #880f7

1 Answer
Hyojung K.
Oct 6, 2017

21,500,000,000 = #2.15*10^10#

Explanation:

Scientific notation is where you:

  1. Find a number within the big/small number that is between 1 and 10. (In this case, 2.15)
  2. Count the number of decimal points shifted in that number. ( In this case, 10 decimal points) Which also equals the exponent number.
  3. Use the equation.

So, #2.15*10^10#

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