When you ask "What number is halfway between 7 and 498?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=7 and Y=498.
To find the number halfway between 7 and 498, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 7 and 498 into our formula, we get:
(7 + 498)/2 = 252.5
Thus, the number halfway between 7 and 498 is 252.5.
To check that our answer is correct, we subtract 7 from 252.5 and subtract 252.5 from 498 and compare the two numbers:
252.5 - 7 = 245.5
498 - 252.5 = 245.5
As you can see, the halfway number is 245.5 higher than 7 and 245.5 lower than 498. Therefore, our halfway between answer of 252.5 above is correct.
Halfway Between
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Halfway Between 7 and 499
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