When you ask "What number is halfway between 68 and 216?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=68 and Y=216.
To find the number halfway between 68 and 216, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 68 and 216 into our formula, we get:
(68 + 216)/2 = 142
Thus, the number halfway between 68 and 216 is 142.
To check that our answer is correct, we subtract 68 from 142 and subtract 142 from 216 and compare the two numbers:
142 - 68 = 74
216 - 142 = 74
As you can see, the halfway number is 74 higher than 68 and 74 lower than 216. Therefore, our halfway between answer of 142 above is correct.
Halfway Between
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Halfway Between 68 and 217
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