
When you ask "What number is halfway between 71 and 570?" 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=570.

To find the number halfway between 71 and 570, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 71 and 570 into our formula, we get:
(71 + 570)/2 = 320.5
Thus, the number halfway between 71 and 570 is 320.5.
To check that our answer is correct, we subtract 71 from 320.5 and subtract 320.5 from 570 and compare the two numbers:
320.5 - 71 = 249.5
570 - 320.5 = 249.5
As you can see, the halfway number is 249.5 higher than 71 and 249.5 lower than 570. Therefore, our halfway between answer of 320.5 above is correct.
Halfway Between
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