Answer
$556 \times10^{3}$
Work Step by Step
$5.560\times 10^5=5.560\times 10^5\times 10^3\times 10^{-3}$
$=5.560\times 10^{5-3}\times 10^3$
$=5.560\times 10^{2}\times 10^3$
$=556 \times10^{3}$
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