Civil Service Exam Reviewer · Basic Operations · hard
Multiply: (9 × 102) × (7 × 106). Express in scientific notation.
- 6.3 × 109
- 63 × 1012
- 6.3 × 107
- 16 × 108
Answer
A. 6.3 × 109
Solution
9 × 7 = 63 and 102 × 106 = 108. Normalized: 6.3 × 109.
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