When you ask "What number is halfway between 49 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=49 and Y=257.
To find the number halfway between 49 and 257, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 49 and 257 into our formula, we get:
(49 + 257)/2 = 153
Thus, the number halfway between 49 and 257 is 153.
To check that our answer is correct, we subtract 49 from 153 and subtract 153 from 257 and compare the two numbers:
153 - 49 = 104
257 - 153 = 104
As you can see, the halfway number is 104 higher than 49 and 104 lower than 257. Therefore, our halfway between answer of 153 above is correct.
Halfway Between
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Halfway Between 49 and 258
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