Halfway Between 66 and 143

When you ask "What number is halfway between 66 and 143?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=66 and Y=143.

Halfway Between Line

To find the number halfway between 66 and 143, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 66 and 143 into our formula, we get:

(66 + 143)/2 = 104.5

Thus, the number halfway between 66 and 143 is 104.5.

To check that our answer is correct, we subtract 66 from 104.5 and subtract 104.5 from 143 and compare the two numbers:

104.5 - 66 = 38.5
143 - 104.5 = 38.5

As you can see, the halfway number is 38.5 higher than 66 and 38.5 lower than 143. Therefore, our halfway between answer of 104.5 above is correct.

Halfway Between
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Halfway Between 66 and 144
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