Halfway Between 13 and 890

When you ask "What number is halfway between 13 and 890?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=13 and Y=890.

Halfway Between Line

To find the number halfway between 13 and 890, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 13 and 890 into our formula, we get:

(13 + 890)/2 = 451.5

Thus, the number halfway between 13 and 890 is 451.5.

To check that our answer is correct, we subtract 13 from 451.5 and subtract 451.5 from 890 and compare the two numbers:

451.5 - 13 = 438.5
890 - 451.5 = 438.5

As you can see, the halfway number is 438.5 higher than 13 and 438.5 lower than 890. Therefore, our halfway between answer of 451.5 above is correct.

Halfway Between
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Halfway Between 13 and 891
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