Halfway Between 100 and 789

When you ask "What number is halfway between 100 and 789?" 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=789.

Halfway Between Line

To find the number halfway between 100 and 789, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 100 and 789 into our formula, we get:

(100 + 789)/2 = 444.5

Thus, the number halfway between 100 and 789 is 444.5.

To check that our answer is correct, we subtract 100 from 444.5 and subtract 444.5 from 789 and compare the two numbers:

444.5 - 100 = 344.5
789 - 444.5 = 344.5

As you can see, the halfway number is 344.5 higher than 100 and 344.5 lower than 789. Therefore, our halfway between answer of 444.5 above is correct.

Halfway Between
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Halfway Between 100 and 790
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