When you ask "What number is halfway between 28 and 485?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=28 and Y=485.
To find the number halfway between 28 and 485, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 28 and 485 into our formula, we get:
(28 + 485)/2 = 256.5
Thus, the number halfway between 28 and 485 is 256.5.
To check that our answer is correct, we subtract 28 from 256.5 and subtract 256.5 from 485 and compare the two numbers:
256.5 - 28 = 228.5
485 - 256.5 = 228.5
As you can see, the halfway number is 228.5 higher than 28 and 228.5 lower than 485. Therefore, our halfway between answer of 256.5 above is correct.
Halfway Between
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Halfway Between 28 and 486
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