Question
Write 230,000,000,000 in scientific notation.
A. 2.3 × 1010
B. 2.3 × 1009
C. 2.3 × 1011
D. 2.3 × 1012
Answer: C. 2.3 × 1011
Solution:
Write the given number in the form
a × 10n ,
where a is a real number such that 1 ≤ |a| < 10 and n is an integer.
230,000,000,000 = 2.3 × 100,000,000,000
= 2.3 × 1011
Hence, the answer 2.3 × 1011.