When you ask "What number is halfway between 78 and 214?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=78 and Y=214.
To find the number halfway between 78 and 214, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 78 and 214 into our formula, we get:
(78 + 214)/2 = 146
Thus, the number halfway between 78 and 214 is 146.
To check that our answer is correct, we subtract 78 from 146 and subtract 146 from 214 and compare the two numbers:
146 - 78 = 68
214 - 146 = 68
As you can see, the halfway number is 68 higher than 78 and 68 lower than 214. Therefore, our halfway between answer of 146 above is correct.
Halfway Between
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Halfway Between 78 and 215
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