Halfway Between 21 and 339

When you ask "What number is halfway between 21 and 339?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=21 and Y=339.

Halfway Between Line

To find the number halfway between 21 and 339, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 21 and 339 into our formula, we get:

(21 + 339)/2 = 180

Thus, the number halfway between 21 and 339 is 180.

To check that our answer is correct, we subtract 21 from 180 and subtract 180 from 339 and compare the two numbers:

180 - 21 = 159
339 - 180 = 159

As you can see, the halfway number is 159 higher than 21 and 159 lower than 339. Therefore, our halfway between answer of 180 above is correct.

Halfway Between
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Halfway Between 21 and 340
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