Practice on metric conversions

Do not turn this in$.$ It is only for practice.

Use significant figures. You do not have to show your work.

Use scientific notation for numbers larger than ${10}^4$ and smaller than ${10}^{-4}.$

$1mm=$

m

$1km=$

m

$1m=$

$cm$

$1m=$

rm

$1cm=$

um

$5\mathrm{.}0mm=$

m

$15km=$

im

$6\mathrm{.}00{10}^{2}m=$

$cm$

$0\mathrm{.}45km=$

$104km=$

im

$1{10}^{9}Mm=$

$cm$

$6{10}^{-4}cm=$

$1m=$

$km$

$4\mathrm{.}9{10}^{-10}mm=$

$km$

$8{10}^{-100}mm=$

Answers: $1)\{$:$0\mathrm{.}001(m)$;$2)1000(m)$;$3$;

$\{$:$1{10}^{17}(cm)$;$12)6{10}^3(nm)$;$13$