When you ask "What number is halfway between 78 and 246?" 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=246.
To find the number halfway between 78 and 246, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 78 and 246 into our formula, we get:
(78 + 246)/2 = 162
Thus, the number halfway between 78 and 246 is 162.
To check that our answer is correct, we subtract 78 from 162 and subtract 162 from 246 and compare the two numbers:
162 - 78 = 84
246 - 162 = 84
As you can see, the halfway number is 84 higher than 78 and 84 lower than 246. Therefore, our halfway between answer of 162 above is correct.
Halfway Between
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Halfway Between 78 and 247
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