When you ask "What number is halfway between 68 and 420?" 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=420.
To find the number halfway between 68 and 420, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 68 and 420 into our formula, we get:
(68 + 420)/2 = 244
Thus, the number halfway between 68 and 420 is 244.
To check that our answer is correct, we subtract 68 from 244 and subtract 244 from 420 and compare the two numbers:
244 - 68 = 176
420 - 244 = 176
As you can see, the halfway number is 176 higher than 68 and 176 lower than 420. Therefore, our halfway between answer of 244 above is correct.
Halfway Between
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Halfway Between 68 and 421
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