Halfway Between 66 and 669

When you ask "What number is halfway between 66 and 669?" 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=669.

Halfway Between Line

To find the number halfway between 66 and 669, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 66 and 669 into our formula, we get:

(66 + 669)/2 = 367.5

Thus, the number halfway between 66 and 669 is 367.5.

To check that our answer is correct, we subtract 66 from 367.5 and subtract 367.5 from 669 and compare the two numbers:

367.5 - 66 = 301.5
669 - 367.5 = 301.5

As you can see, the halfway number is 301.5 higher than 66 and 301.5 lower than 669. Therefore, our halfway between answer of 367.5 above is correct.

Halfway Between
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Halfway Between 66 and 670
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