Halfway Between 4 and 321

When you ask "What number is halfway between 4 and 321?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=4 and Y=321.

Halfway Between Line

To find the number halfway between 4 and 321, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 4 and 321 into our formula, we get:

(4 + 321)/2 = 162.5

Thus, the number halfway between 4 and 321 is 162.5.

To check that our answer is correct, we subtract 4 from 162.5 and subtract 162.5 from 321 and compare the two numbers:

162.5 - 4 = 158.5
321 - 162.5 = 158.5

As you can see, the halfway number is 158.5 higher than 4 and 158.5 lower than 321. Therefore, our halfway between answer of 162.5 above is correct.

Halfway Between
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Halfway Between 4 and 322
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