When you ask "What number is halfway between 47 and 320?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=47 and Y=320.
To find the number halfway between 47 and 320, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 47 and 320 into our formula, we get:
(47 + 320)/2 = 183.5
Thus, the number halfway between 47 and 320 is 183.5.
To check that our answer is correct, we subtract 47 from 183.5 and subtract 183.5 from 320 and compare the two numbers:
183.5 - 47 = 136.5
320 - 183.5 = 136.5
As you can see, the halfway number is 136.5 higher than 47 and 136.5 lower than 320. Therefore, our halfway between answer of 183.5 above is correct.
Halfway Between
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Halfway Between 47 and 321
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