Halfway Between 5 and 640

When you ask "What number is halfway between 5 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=5 and Y=640.

Halfway Between Line

To find the number halfway between 5 and 640, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 5 and 640 into our formula, we get:

(5 + 640)/2 = 322.5

Thus, the number halfway between 5 and 640 is 322.5.

To check that our answer is correct, we subtract 5 from 322.5 and subtract 322.5 from 640 and compare the two numbers:

322.5 - 5 = 317.5
640 - 322.5 = 317.5

As you can see, the halfway number is 317.5 higher than 5 and 317.5 lower than 640. Therefore, our halfway between answer of 322.5 above is correct.

Halfway Between
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