Question

The planet mars has an average distance from the sun of about 1.416× 10 8 miles. Write this number in standard form. (MCC.8.EE.1). A. 0.00001416 B. 1,416 C. 14,160,000 D. 141,600,000

Answer 1

D. 141,600,000

Explanation:

Multiplication by 10^8 moves the decimal point 8 places to the right.

Multiplication by 10^8 moves the most significant digit 8 places to the left relative to the decimal point, which may be a more intuitive way to think about it. Moving the most significant digit left one place multipiles its value by 10. You're doing that 8 times. (An exponent is the notation we use for repeated multiplication.)