Explain how to use a number line tomultiply 9 X 50.

1 answer:

5 0

How you multiply on a number line is you mark your numbers to set up your number line and you hop 9 times by 50

If this doesn’t make sense please tell me nicely :)

And if this is wrong please tell me :)

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Find the square root of 15129 by division method

MAXImum [283]

$\underline{\ \ \ \ \ \ 123}\\1\ \ \ |15129\\\underline{\ \ \ \ \|1}\\22\ |\ 51\\\underline{\ \ \ \ |\ 44}\\243|\ \ 729\\\underline{\ \ \ \ \ |\ 729}\\.\qquad\ \ \ 0$

$\sqrt{15129}=123$

$\begin{array}{c|c}15129&3\\5043&3\\1681&41\\41&41\\1\end{array}15129=3\cdot3\cdot41\cdot41=3^2\cdot41^2\\\\\sqrt{15129}=\sqrt{3^2\cdot41^2}=\sqrt3^2}\cdot\sqrt{41^2}=3\cdot41=123$