What is the value of 18^2 + 19^2 + 20^2 + 21^2 + 22^2 ? Answers.
A) 2010  B) 2012  C) 2016  D) 2028  E) 2058
This is what I did, all the nos are close to 20, and squared, so 20^2 plus there are 5 numbers, so (20)^2 x 5 =2000,   now squaring the last digits of each no individually comes up to   (4+1+0+1+4)= 
<gadget id="calculator">  (4+1+0+1+4)</gadget>
<output>10</output>
10.   when you add the 2 up it gives you a  (2000+10)= 
<gadget id="calculator"> (2000+10)</gadget>
<output>2_010</output>
2010,   2010nswer is 2010
<result>A</result>
What is the value of 18^2 + 19^2 + 20^2 + 21^2 + 22^2 ?