When you ask "What number is halfway between 38 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=38 and Y=257.
To find the number halfway between 38 and 257, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 38 and 257 into our formula, we get:
(38 + 257)/2 = 147.5
Thus, the number halfway between 38 and 257 is 147.5.
To check that our answer is correct, we subtract 38 from 147.5 and subtract 147.5 from 257 and compare the two numbers:
147.5 - 38 = 109.5
257 - 147.5 = 109.5
As you can see, the halfway number is 109.5 higher than 38 and 109.5 lower than 257. Therefore, our halfway between answer of 147.5 above is correct.
Halfway Between
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Halfway Between 38 and 258
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