Normalise a compound standard-form calculation
Calculate \(\dfrac{(4.5\times10^{ 7 })(6\times10^{ -5 })}{ 9\times10^{ 1 }}\), giving the exact result in standard form \(A\times10^N\). State \(A\) and \(N\).
Worked practice: write standard form
Combine ordinary-number factors and powers of ten separately, then normalise the coefficient.
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