When you ask "What number is halfway between 80 and 225?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=80 and Y=225.
To find the number halfway between 80 and 225, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 80 and 225 into our formula, we get:
(80 + 225)/2 = 152.5
Thus, the number halfway between 80 and 225 is 152.5.
To check that our answer is correct, we subtract 80 from 152.5 and subtract 152.5 from 225 and compare the two numbers:
152.5 - 80 = 72.5
225 - 152.5 = 72.5
As you can see, the halfway number is 72.5 higher than 80 and 72.5 lower than 225. Therefore, our halfway between answer of 152.5 above is correct.
Halfway Between
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Halfway Between 80 and 226
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