When you ask "What number is halfway between 63 and 142?" 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=142.
To find the number halfway between 63 and 142, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 63 and 142 into our formula, we get:
(63 + 142)/2 = 102.5
Thus, the number halfway between 63 and 142 is 102.5.
To check that our answer is correct, we subtract 63 from 102.5 and subtract 102.5 from 142 and compare the two numbers:
102.5 - 63 = 39.5
142 - 102.5 = 39.5
As you can see, the halfway number is 39.5 higher than 63 and 39.5 lower than 142. Therefore, our halfway between answer of 102.5 above is correct.
Halfway Between
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Halfway Between 63 and 143
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