When you ask "What number is halfway between 83 and 257?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=83 and Y=257.
To find the number halfway between 83 and 257, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 83 and 257 into our formula, we get:
(83 + 257)/2 = 170
Thus, the number halfway between 83 and 257 is 170.
To check that our answer is correct, we subtract 83 from 170 and subtract 170 from 257 and compare the two numbers:
170 - 83 = 87
257 - 170 = 87
As you can see, the halfway number is 87 higher than 83 and 87 lower than 257. Therefore, our halfway between answer of 170 above is correct.
Halfway Between
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Halfway Between 83 and 258
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