Question

A meter is not equal to
100 cm
10^3 mm
0.01 km
10^-3 km

Answer 1

A meter IS equal to 100 cm, 10³ mm, and 10⁻³ km.

A meter is NOT equal to  0.01 km.  If you want to write it
that way, then the correct number is 0.001 km.