When you ask "What number is halfway between 69 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=69 and Y=257.
To find the number halfway between 69 and 257, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 69 and 257 into our formula, we get:
(69 + 257)/2 = 163
Thus, the number halfway between 69 and 257 is 163.
To check that our answer is correct, we subtract 69 from 163 and subtract 163 from 257 and compare the two numbers:
163 - 69 = 94
257 - 163 = 94
As you can see, the halfway number is 94 higher than 69 and 94 lower than 257. Therefore, our halfway between answer of 163 above is correct.
Halfway Between
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Halfway Between 69 and 258
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