Question 943224
<pre>
We need 

1. the LARGEST 4-digit number we can make with two 1’s, 0, and 2
that is LESS than 2011.  That's 1210.

and

2. the SMALLEST 4-digit number we can make with two 1’s, 0, and 2
that is GREATER than 2011.  That's 2101.

Subtract them to find the difference:

2101-1210 = 891

Answer: 891 

Edwin</pre>