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-89650
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-89650
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3.5\times 100-900\times 10^{2}
Calculate 10 to the power of 2 and get 100.
350-900\times 10^{2}
Multiply 3.5 and 100 to get 350.
350-900\times 100
Calculate 10 to the power of 2 and get 100.
350-90000
Multiply 900 and 100 to get 90000.
-89650
Subtract 90000 from 350 to get -89650.
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