Halfway Between 80 and 690

When you ask "What number is halfway between 80 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=80 and Y=690.

Halfway Between Line

To find the number halfway between 80 and 690, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 80 and 690 into our formula, we get:

(80 + 690)/2 = 385

Thus, the number halfway between 80 and 690 is 385.

To check that our answer is correct, we subtract 80 from 385 and subtract 385 from 690 and compare the two numbers:

385 - 80 = 305
690 - 385 = 305

As you can see, the halfway number is 305 higher than 80 and 305 lower than 690. Therefore, our halfway between answer of 385 above is correct.

Halfway Between
Find halfway between two other numbers here!

Halfway Between 80 and 691
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