Question
Convert into indicated units:
$4$ km and $300$ m into m

Answer

$4 km$ and $300 m$ into $m$.
$4 km$ and $300 m$
$ =4 \times 1000 m +300 m$
$=4000 m +300 m \ldots[\therefore 1 km =1000 m ]$
$=4300 m $
$\therefore 4 km$ and $300 m =4300 m$

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