Halfway Between 100 and 542

When you ask "What number is halfway between 100 and 542?" 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=542.

Halfway Between Line

To find the number halfway between 100 and 542, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 100 and 542 into our formula, we get:

(100 + 542)/2 = 321

Thus, the number halfway between 100 and 542 is 321.

To check that our answer is correct, we subtract 100 from 321 and subtract 321 from 542 and compare the two numbers:

321 - 100 = 221
542 - 321 = 221

As you can see, the halfway number is 221 higher than 100 and 221 lower than 542. Therefore, our halfway between answer of 321 above is correct.

Halfway Between
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Halfway Between 100 and 543
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