Halfway Between 30 and 690

When you ask "What number is halfway between 30 and 690?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=30 and Y=690.

Halfway Between Line

To find the number halfway between 30 and 690, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 30 and 690 into our formula, we get:

(30 + 690)/2 = 360

Thus, the number halfway between 30 and 690 is 360.

To check that our answer is correct, we subtract 30 from 360 and subtract 360 from 690 and compare the two numbers:

360 - 30 = 330
690 - 360 = 330

As you can see, the halfway number is 330 higher than 30 and 330 lower than 690. Therefore, our halfway between answer of 360 above is correct.

Halfway Between
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Halfway Between 30 and 691
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