When you ask "What number is halfway between 30 and 116?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=30 and Y=116.
To find the number halfway between 30 and 116, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 30 and 116 into our formula, we get:
(30 + 116)/2 = 73
Thus, the number halfway between 30 and 116 is 73.
To check that our answer is correct, we subtract 30 from 73 and subtract 73 from 116 and compare the two numbers:
73 - 30 = 43
116 - 73 = 43
As you can see, the halfway number is 43 higher than 30 and 43 lower than 116. Therefore, our halfway between answer of 73 above is correct.
Halfway Between
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Halfway Between 30 and 117
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