When you ask "What number is halfway between 3 and 274?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=3 and Y=274.
To find the number halfway between 3 and 274, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 3 and 274 into our formula, we get:
(3 + 274)/2 = 138.5
Thus, the number halfway between 3 and 274 is 138.5.
To check that our answer is correct, we subtract 3 from 138.5 and subtract 138.5 from 274 and compare the two numbers:
138.5 - 3 = 135.5
274 - 138.5 = 135.5
As you can see, the halfway number is 135.5 higher than 3 and 135.5 lower than 274. Therefore, our halfway between answer of 138.5 above is correct.
Halfway Between
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Halfway Between 3 and 275
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