Halfway Between 100 and 779

When you ask "What number is halfway between 100 and 779?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=100 and Y=779.

Halfway Between Line

To find the number halfway between 100 and 779, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 100 and 779 into our formula, we get:

(100 + 779)/2 = 439.5

Thus, the number halfway between 100 and 779 is 439.5.

To check that our answer is correct, we subtract 100 from 439.5 and subtract 439.5 from 779 and compare the two numbers:

439.5 - 100 = 339.5
779 - 439.5 = 339.5

As you can see, the halfway number is 339.5 higher than 100 and 339.5 lower than 779. Therefore, our halfway between answer of 439.5 above is correct.

Halfway Between
Find halfway between two other numbers here!

Halfway Between 100 and 780
Here is our next Halfway Between calculation.