Halfway Between 80 and 685

When you ask "What number is halfway between 80 and 685?" 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=685.

Halfway Between Line

To find the number halfway between 80 and 685, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 80 and 685 into our formula, we get:

(80 + 685)/2 = 382.5

Thus, the number halfway between 80 and 685 is 382.5.

To check that our answer is correct, we subtract 80 from 382.5 and subtract 382.5 from 685 and compare the two numbers:

382.5 - 80 = 302.5
685 - 382.5 = 302.5

As you can see, the halfway number is 302.5 higher than 80 and 302.5 lower than 685. Therefore, our halfway between answer of 382.5 above is correct.

Halfway Between
Find halfway between two other numbers here!

Halfway Between 80 and 686
Here is our next Halfway Between calculation.