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}-b_{2}}\end{aligned}}}

    \begin{align}

    x_1\cdotx_2&=a_1a_2\times10^{b_1 b_2}\\

    \frac{x_1}{x_2}&=\frac{a_1}{a_2}\times10^{b_1-b_2}

    \end{align}

    1

    例如:

    {\dispystyle2.71\times10^{8}\times2\times10^{6}}{\dispystyle2.71\times10^{8}\times2\times10^{6}}

    {\dispystyle=2.71\times2\times10^{8 6}}{\dispystyle=2.71\times2\times10^{8 6}}

    {\dispystyle=5.42\times10^{14}}{\dispystyle=5.42\times10^{14}}

    又例如:

    {\dispystyle{\frac{17.225\times10^{2}}{2.5\times10^{9}}}}{\dispystyle{\frac{17.225\times10^{2}}{2.5\times10^{9}}}}

    {\dispystyle={\frac{17.225}{2.5}}\times10^{2-9}}{\dispystyle={\frac{17.225}{2.5}}\times10^{2-9}}

    {\dispys