When you ask "What number is halfway between 7 and 506?" 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=506.
To find the number halfway between 7 and 506, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 7 and 506 into our formula, we get:
(7 + 506)/2 = 256.5
Thus, the number halfway between 7 and 506 is 256.5.
To check that our answer is correct, we subtract 7 from 256.5 and subtract 256.5 from 506 and compare the two numbers:
256.5 - 7 = 249.5
506 - 256.5 = 249.5
As you can see, the halfway number is 249.5 higher than 7 and 249.5 lower than 506. Therefore, our halfway between answer of 256.5 above is correct.
Halfway Between
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Halfway Between 7 and 507
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