When you ask "What number is halfway between 20 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=20 and Y=116.
To find the number halfway between 20 and 116, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 20 and 116 into our formula, we get:
(20 + 116)/2 = 68
Thus, the number halfway between 20 and 116 is 68.
To check that our answer is correct, we subtract 20 from 68 and subtract 68 from 116 and compare the two numbers:
68 - 20 = 48
116 - 68 = 48
As you can see, the halfway number is 48 higher than 20 and 48 lower than 116. Therefore, our halfway between answer of 68 above is correct.
Halfway Between
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Halfway Between 20 and 117
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