When you ask "What number is halfway between 7 and 115?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=7 and Y=115.
To find the number halfway between 7 and 115, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 7 and 115 into our formula, we get:
(7 + 115)/2 = 61
Thus, the number halfway between 7 and 115 is 61.
To check that our answer is correct, we subtract 7 from 61 and subtract 61 from 115 and compare the two numbers:
61 - 7 = 54
115 - 61 = 54
As you can see, the halfway number is 54 higher than 7 and 54 lower than 115. Therefore, our halfway between answer of 61 above is correct.
Halfway Between
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Halfway Between 7 and 116
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