Divide 6.8 × 105 by 2.0 × 102. Write your answer in scientific notation?
To divide numbers written in scienti?c notation and divide the ?rst numbers (6.8 ÷ 2.0 = 3.4); then divide the powers of 10, that means you subtract the exponents of 10 (105 ÷ 102 = 103). The answer is 3.4 × 103.