Subtract 9.0 x 103 from 2.0 x 104 and express the answer in scientific notation.

Name: Subtract 9.0 x 103 from 2.0 x 104 and express the answer in scientific notation.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

To subtract 9.0 x 10^(3) from 2.0 x 10^(4), we first need to line up the decimal points by adding a placeholder zero:

2.0 x 10^(4)
  - 0.9 x 10^(4)
  _____________
    1.1 x 10^(4)

So the answer is 1.1 x 10^(4), which is choice D.