Halfway Between 9 and 670

When you ask "What number is halfway between 9 and 670?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=9 and Y=670.

Halfway Between Line

To find the number halfway between 9 and 670, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 9 and 670 into our formula, we get:

(9 + 670)/2 = 339.5

Thus, the number halfway between 9 and 670 is 339.5.

To check that our answer is correct, we subtract 9 from 339.5 and subtract 339.5 from 670 and compare the two numbers:

339.5 - 9 = 330.5
670 - 339.5 = 330.5

As you can see, the halfway number is 330.5 higher than 9 and 330.5 lower than 670. Therefore, our halfway between answer of 339.5 above is correct.

Halfway Between
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Halfway Between 9 and 671
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