When you ask "What number is halfway between 3 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=3 and Y=144.
To find the number halfway between 3 and 144, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 3 and 144 into our formula, we get:
(3 + 144)/2 = 73.5
Thus, the number halfway between 3 and 144 is 73.5.
To check that our answer is correct, we subtract 3 from 73.5 and subtract 73.5 from 144 and compare the two numbers:
73.5 - 3 = 70.5
144 - 73.5 = 70.5
As you can see, the halfway number is 70.5 higher than 3 and 70.5 lower than 144. Therefore, our halfway between answer of 73.5 above is correct.
Halfway Between
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Halfway Between 3 and 145
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