Halfway Between 21 and 355

When you ask "What number is halfway between 21 and 355?" 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=355.

Halfway Between Line

To find the number halfway between 21 and 355, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 21 and 355 into our formula, we get:

(21 + 355)/2 = 188

Thus, the number halfway between 21 and 355 is 188.

To check that our answer is correct, we subtract 21 from 188 and subtract 188 from 355 and compare the two numbers:

188 - 21 = 167
355 - 188 = 167

As you can see, the halfway number is 167 higher than 21 and 167 lower than 355. Therefore, our halfway between answer of 188 above is correct.

Halfway Between
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Halfway Between 21 and 356
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