Halfway Between 100 and 650

When you ask "What number is halfway between 100 and 650?" 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=650.

Halfway Between Line

To find the number halfway between 100 and 650, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 100 and 650 into our formula, we get:

(100 + 650)/2 = 375

Thus, the number halfway between 100 and 650 is 375.

To check that our answer is correct, we subtract 100 from 375 and subtract 375 from 650 and compare the two numbers:

375 - 100 = 275
650 - 375 = 275

As you can see, the halfway number is 275 higher than 100 and 275 lower than 650. Therefore, our halfway between answer of 375 above is correct.

Halfway Between
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