Question 663819
The sum of 4 consecutive 3 digit numbers is 866.  What are the 4 numbers? Explain your strategy.
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866/4 = 216.5, the center
Two integers are less than 216.5, 2 or more.
--> 215, 216, 217 & 218
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The hard way:
n + n+1 + n+2 + n+3 = 866
4n + 6 = 866
4n = 860
n = 215
--> same answer