Exercises: place value chart

$1 µm$ is $\frac{1}{1 000 000} m$ , that is, a millionth of a meter. Now, if you write $25 µm$ in $m$ , how many places behind the decimal point do you have to put the digit 2?

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$25 μ m$	$=$	$\frac{25}{1 000 000}$
	↓	Shift the decimal point six places to the left.
	$=$	$0.000025$