<em>Answer</em>,
<em>1,780 + 20 = 1,800 </em>
<em>Or, (3^2) x 200 = 1,800</em>
<em>Explanation</em>
<em>To be honest I'm not quite sure if this was the answer you were looking for. </em>
<em>But, anyway this is how I did it</em>
9 x 200 = 1,800
1,800 - 20 = 1,780
1,780 + 20 = 1,800
<em>For the second one I did,</em>
(3^2) because, that = 9 so It's the same as 9 x 200 in a different form like the answer above.
<u><em>I truly hope this helps :-)</em></u>