When you ask "What number is halfway between 5 and 144?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=5 and Y=144.
To find the number halfway between 5 and 144, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 5 and 144 into our formula, we get:
(5 + 144)/2 = 74.5
Thus, the number halfway between 5 and 144 is 74.5.
To check that our answer is correct, we subtract 5 from 74.5 and subtract 74.5 from 144 and compare the two numbers:
74.5 - 5 = 69.5
144 - 74.5 = 69.5
As you can see, the halfway number is 69.5 higher than 5 and 69.5 lower than 144. Therefore, our halfway between answer of 74.5 above is correct.
Halfway Between
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Halfway Between 5 and 145
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