Halfway Between 100 and 648

When you ask "What number is halfway between 100 and 648?" 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=648.

Halfway Between Line

To find the number halfway between 100 and 648, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 100 and 648 into our formula, we get:

(100 + 648)/2 = 374

Thus, the number halfway between 100 and 648 is 374.

To check that our answer is correct, we subtract 100 from 374 and subtract 374 from 648 and compare the two numbers:

374 - 100 = 274
648 - 374 = 274

As you can see, the halfway number is 274 higher than 100 and 274 lower than 648. Therefore, our halfway between answer of 374 above is correct.

Halfway Between
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Halfway Between 100 and 649
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