When you ask "What number is halfway between 56 and 189?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=56 and Y=189.
To find the number halfway between 56 and 189, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 56 and 189 into our formula, we get:
(56 + 189)/2 = 122.5
Thus, the number halfway between 56 and 189 is 122.5.
To check that our answer is correct, we subtract 56 from 122.5 and subtract 122.5 from 189 and compare the two numbers:
122.5 - 56 = 66.5
189 - 122.5 = 66.5
As you can see, the halfway number is 66.5 higher than 56 and 66.5 lower than 189. Therefore, our halfway between answer of 122.5 above is correct.
Halfway Between
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Halfway Between 56 and 190
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