When you ask "What number is halfway between 28 and 178?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=28 and Y=178.
To find the number halfway between 28 and 178, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 28 and 178 into our formula, we get:
(28 + 178)/2 = 103
Thus, the number halfway between 28 and 178 is 103.
To check that our answer is correct, we subtract 28 from 103 and subtract 103 from 178 and compare the two numbers:
103 - 28 = 75
178 - 103 = 75
As you can see, the halfway number is 75 higher than 28 and 75 lower than 178. Therefore, our halfway between answer of 103 above is correct.
Halfway Between
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Halfway Between 28 and 179
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