When you ask "What number is halfway between 42 and 163?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=42 and Y=163.
To find the number halfway between 42 and 163, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 42 and 163 into our formula, we get:
(42 + 163)/2 = 102.5
Thus, the number halfway between 42 and 163 is 102.5.
To check that our answer is correct, we subtract 42 from 102.5 and subtract 102.5 from 163 and compare the two numbers:
102.5 - 42 = 60.5
163 - 102.5 = 60.5
As you can see, the halfway number is 60.5 higher than 42 and 60.5 lower than 163. Therefore, our halfway between answer of 102.5 above is correct.
Halfway Between
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Halfway Between 42 and 164
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