Halfway Between 70 and 640

When you ask "What number is halfway between 70 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=70 and Y=640.

Halfway Between Line

To find the number halfway between 70 and 640, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 70 and 640 into our formula, we get:

(70 + 640)/2 = 355

Thus, the number halfway between 70 and 640 is 355.

To check that our answer is correct, we subtract 70 from 355 and subtract 355 from 640 and compare the two numbers:

355 - 70 = 285
640 - 355 = 285

As you can see, the halfway number is 285 higher than 70 and 285 lower than 640. Therefore, our halfway between answer of 355 above is correct.

Halfway Between
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