When you ask "What number is halfway between 2 and 145?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=2 and Y=145.
To find the number halfway between 2 and 145, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 2 and 145 into our formula, we get:
(2 + 145)/2 = 73.5
Thus, the number halfway between 2 and 145 is 73.5.
To check that our answer is correct, we subtract 2 from 73.5 and subtract 73.5 from 145 and compare the two numbers:
73.5 - 2 = 71.5
145 - 73.5 = 71.5
As you can see, the halfway number is 71.5 higher than 2 and 71.5 lower than 145. Therefore, our halfway between answer of 73.5 above is correct.
Halfway Between
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Halfway Between 2 and 146
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