When you ask "What number is halfway between 8 and 545?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=8 and Y=545.
To find the number halfway between 8 and 545, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 8 and 545 into our formula, we get:
(8 + 545)/2 = 276.5
Thus, the number halfway between 8 and 545 is 276.5.
To check that our answer is correct, we subtract 8 from 276.5 and subtract 276.5 from 545 and compare the two numbers:
276.5 - 8 = 268.5
545 - 276.5 = 268.5
As you can see, the halfway number is 268.5 higher than 8 and 268.5 lower than 545. Therefore, our halfway between answer of 276.5 above is correct.
Halfway Between
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Halfway Between 8 and 546
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