Halfway Between 21 and 659

When you ask "What number is halfway between 21 and 659?" 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=659.

Halfway Between Line

To find the number halfway between 21 and 659, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 21 and 659 into our formula, we get:

(21 + 659)/2 = 340

Thus, the number halfway between 21 and 659 is 340.

To check that our answer is correct, we subtract 21 from 340 and subtract 340 from 659 and compare the two numbers:

340 - 21 = 319
659 - 340 = 319

As you can see, the halfway number is 319 higher than 21 and 319 lower than 659. Therefore, our halfway between answer of 340 above is correct.

Halfway Between
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Halfway Between 21 and 660
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