When you ask "What number is halfway between 71 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=71 and Y=320.
To find the number halfway between 71 and 320, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 71 and 320 into our formula, we get:
(71 + 320)/2 = 195.5
Thus, the number halfway between 71 and 320 is 195.5.
To check that our answer is correct, we subtract 71 from 195.5 and subtract 195.5 from 320 and compare the two numbers:
195.5 - 71 = 124.5
320 - 195.5 = 124.5
As you can see, the halfway number is 124.5 higher than 71 and 124.5 lower than 320. Therefore, our halfway between answer of 195.5 above is correct.
Halfway Between
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Halfway Between 71 and 321
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