When you ask "What number is halfway between 54 and 159?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=54 and Y=159.
To find the number halfway between 54 and 159, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 54 and 159 into our formula, we get:
(54 + 159)/2 = 106.5
Thus, the number halfway between 54 and 159 is 106.5.
To check that our answer is correct, we subtract 54 from 106.5 and subtract 106.5 from 159 and compare the two numbers:
106.5 - 54 = 52.5
159 - 106.5 = 52.5
As you can see, the halfway number is 52.5 higher than 54 and 52.5 lower than 159. Therefore, our halfway between answer of 106.5 above is correct.
Halfway Between
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Halfway Between 54 and 160
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