Halfway Between 3 and 628

When you ask "What number is halfway between 3 and 628?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=3 and Y=628.

Halfway Between Line

To find the number halfway between 3 and 628, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 3 and 628 into our formula, we get:

(3 + 628)/2 = 315.5

Thus, the number halfway between 3 and 628 is 315.5.

To check that our answer is correct, we subtract 3 from 315.5 and subtract 315.5 from 628 and compare the two numbers:

315.5 - 3 = 312.5
628 - 315.5 = 312.5

As you can see, the halfway number is 312.5 higher than 3 and 312.5 lower than 628. Therefore, our halfway between answer of 315.5 above is correct.

Halfway Between
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Halfway Between 3 and 629
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