Halfway Between 21 and 380

When you ask "What number is halfway between 21 and 380?" 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=380.

Halfway Between Line

To find the number halfway between 21 and 380, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 21 and 380 into our formula, we get:

(21 + 380)/2 = 200.5

Thus, the number halfway between 21 and 380 is 200.5.

To check that our answer is correct, we subtract 21 from 200.5 and subtract 200.5 from 380 and compare the two numbers:

200.5 - 21 = 179.5
380 - 200.5 = 179.5

As you can see, the halfway number is 179.5 higher than 21 and 179.5 lower than 380. Therefore, our halfway between answer of 200.5 above is correct.

Halfway Between
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Halfway Between 21 and 381
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