Mathematics, 04.09.2020 22:01 sebastianmettsovghhk

Lena starts to use the standard algorithm to solve 39\times439×439, times, 4. Her work is shown below. \begin{aligned} \overset{\blueD{m}}3\overset{}9& ;\\ \underline{{} \times \phantom{} 4}&\\ 6& \end{aligned} 3 m 9 × 4 6 What number should Lena replace \blueD{m}mstart color #11accd, m, end color #11accd with?

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Lena starts to use the standard algorithm to solve 39\times439×439, times, 4. Her work is shown belo...

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