When you ask "What number is halfway between 71 and 277?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=71 and Y=277.
To find the number halfway between 71 and 277, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 71 and 277 into our formula, we get:
(71 + 277)/2 = 174
Thus, the number halfway between 71 and 277 is 174.
To check that our answer is correct, we subtract 71 from 174 and subtract 174 from 277 and compare the two numbers:
174 - 71 = 103
277 - 174 = 103
As you can see, the halfway number is 103 higher than 71 and 103 lower than 277. Therefore, our halfway between answer of 174 above is correct.
Halfway Between
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Halfway Between 71 and 278
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