Halfway Between 21 and 745

When you ask "What number is halfway between 21 and 745?" 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=745.

Halfway Between Line

To find the number halfway between 21 and 745, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 21 and 745 into our formula, we get:

(21 + 745)/2 = 383

Thus, the number halfway between 21 and 745 is 383.

To check that our answer is correct, we subtract 21 from 383 and subtract 383 from 745 and compare the two numbers:

383 - 21 = 362
745 - 383 = 362

As you can see, the halfway number is 362 higher than 21 and 362 lower than 745. Therefore, our halfway between answer of 383 above is correct.

Halfway Between
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Halfway Between 21 and 746
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