Halfway Between 100 and 670

When you ask "What number is halfway between 100 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=100 and Y=670.

Halfway Between Line

To find the number halfway between 100 and 670, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 100 and 670 into our formula, we get:

(100 + 670)/2 = 385

Thus, the number halfway between 100 and 670 is 385.

To check that our answer is correct, we subtract 100 from 385 and subtract 385 from 670 and compare the two numbers:

385 - 100 = 285
670 - 385 = 285

As you can see, the halfway number is 285 higher than 100 and 285 lower than 670. Therefore, our halfway between answer of 385 above is correct.

Halfway Between
Find halfway between two other numbers here!

Halfway Between 100 and 671
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