When you ask "What number is halfway between 63 and 156?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=63 and Y=156.
To find the number halfway between 63 and 156, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 63 and 156 into our formula, we get:
(63 + 156)/2 = 109.5
Thus, the number halfway between 63 and 156 is 109.5.
To check that our answer is correct, we subtract 63 from 109.5 and subtract 109.5 from 156 and compare the two numbers:
109.5 - 63 = 46.5
156 - 109.5 = 46.5
As you can see, the halfway number is 46.5 higher than 63 and 46.5 lower than 156. Therefore, our halfway between answer of 109.5 above is correct.
Halfway Between
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Halfway Between 63 and 157
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