Solving the first expression, we have:
(4.5⋅10^4)⋅(6.6⋅10^−8)
=30.6⋅10^−4
=3.06⋅10^−3
So the first expression goes into the second box.
For the second one, we have:
(2.8⋅10^2)⋅(6.5⋅10^−7)
=18.2⋅10^−5
=1.82⋅10^−4
So the second expression goes into the first box.
Put the third expression into the fourth box and the fourth expression into the third box
