When you ask "What number is halfway between 22 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=22 and Y=669.
To find the number halfway between 22 and 669, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 22 and 669 into our formula, we get:
(22 + 669)/2 = 345.5
Thus, the number halfway between 22 and 669 is 345.5.
To check that our answer is correct, we subtract 22 from 345.5 and subtract 345.5 from 669 and compare the two numbers:
345.5 - 22 = 323.5
669 - 345.5 = 323.5
As you can see, the halfway number is 323.5 higher than 22 and 323.5 lower than 669. Therefore, our halfway between answer of 345.5 above is correct.
Halfway Between
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Halfway Between 22 and 670
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