When you ask "What number is halfway between 42 and 113?" 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=113.
To find the number halfway between 42 and 113, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 42 and 113 into our formula, we get:
(42 + 113)/2 = 77.5
Thus, the number halfway between 42 and 113 is 77.5.
To check that our answer is correct, we subtract 42 from 77.5 and subtract 77.5 from 113 and compare the two numbers:
77.5 - 42 = 35.5
113 - 77.5 = 35.5
As you can see, the halfway number is 35.5 higher than 42 and 35.5 lower than 113. Therefore, our halfway between answer of 77.5 above is correct.
Halfway Between
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Halfway Between 42 and 114
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