When you ask "What number is halfway between 54 and 245?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=54 and Y=245.
To find the number halfway between 54 and 245, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 54 and 245 into our formula, we get:
(54 + 245)/2 = 149.5
Thus, the number halfway between 54 and 245 is 149.5.
To check that our answer is correct, we subtract 54 from 149.5 and subtract 149.5 from 245 and compare the two numbers:
149.5 - 54 = 95.5
245 - 149.5 = 95.5
As you can see, the halfway number is 95.5 higher than 54 and 95.5 lower than 245. Therefore, our halfway between answer of 149.5 above is correct.
Halfway Between
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Halfway Between 54 and 246
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