When you ask "What number is halfway between 63 and 144?" 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=144.
To find the number halfway between 63 and 144, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 63 and 144 into our formula, we get:
(63 + 144)/2 = 103.5
Thus, the number halfway between 63 and 144 is 103.5.
To check that our answer is correct, we subtract 63 from 103.5 and subtract 103.5 from 144 and compare the two numbers:
103.5 - 63 = 40.5
144 - 103.5 = 40.5
As you can see, the halfway number is 40.5 higher than 63 and 40.5 lower than 144. Therefore, our halfway between answer of 103.5 above is correct.
Halfway Between
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Halfway Between 63 and 145
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