Following the pattern for multiplying by powers of ten, what is 47 times 10,000?
A407,000
B475,000
C470,000
D470,600
Answer & Solution
Correct answer: C. 470,000
1. Count the zeros in the power of ten: 10,000 has four zeros.
2. To multiply by a power of ten, place that many zeros after the other factor.
3. Placing four zeros after 47 gives 470,000.
4. 407,000, 475,000, and 470,600 each change a digit of 47 itself rather than correctly appending four zeros after it.
_Source: OpenStax Prealgebra (CC BY 4.0), Ch 1 "Whole Numbers", section 1.4 Multiply Whole Numbers_
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