Question

Arrange the following lengths in their increasing magnitude:
$1metre,$ $1centimetre,$ $1kilometre,$ $1millimetre.$

Answer 1

$1$ centimeter $={10}^{-2}$ metre

$1$ kilometer$={10}^3$ metre

$1$ millimeter $={10}^{-3}$ metre

Hence in order of increasing magnitude

${10}^{-3}m<{10}^{-2}m<1m<{10}^{3}m$