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-900
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-900
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\frac{200}{2}-\frac{1}{0.001}
Expand \frac{2}{0.02} by multiplying both numerator and the denominator by 100.
100-\frac{1}{0.001}
Divide 200 by 2 to get 100.
100-1000
Expand \frac{1}{0.001} by multiplying both numerator and the denominator by 1000. Anything divided by one gives itself.
-900
Subtract 1000 from 100 to get -900.
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