Halfway Between 40 and 640

When you ask "What number is halfway between 40 and 640?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=40 and Y=640.

Halfway Between Line

To find the number halfway between 40 and 640, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 40 and 640 into our formula, we get:

(40 + 640)/2 = 340

Thus, the number halfway between 40 and 640 is 340.

To check that our answer is correct, we subtract 40 from 340 and subtract 340 from 640 and compare the two numbers:

340 - 40 = 300
640 - 340 = 300

As you can see, the halfway number is 300 higher than 40 and 300 lower than 640. Therefore, our halfway between answer of 340 above is correct.

Halfway Between
Find halfway between two other numbers here!

Halfway Between 40 and 641
Here is our next Halfway Between calculation.