What is the sum of the first 22 natural numbers (starting from 1)?	Choose the correct choice from the following answers:	A) 223	B) 233	C) 243	D) 253	E) 263
The sum of n natural numbers = n*(n+1) / 2 = 22*23/2= 
<gadget id="calculator">22*23/2</gadget>
<output>253</output>
253   The answer is 253.
<result>D</result>
What is the sum of the first 22 natural numbers (starting from 1)?