When you ask "What number is halfway between 58 and 143?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=58 and Y=143.
To find the number halfway between 58 and 143, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 58 and 143 into our formula, we get:
(58 + 143)/2 = 100.5
Thus, the number halfway between 58 and 143 is 100.5.
To check that our answer is correct, we subtract 58 from 100.5 and subtract 100.5 from 143 and compare the two numbers:
100.5 - 58 = 42.5
143 - 100.5 = 42.5
As you can see, the halfway number is 42.5 higher than 58 and 42.5 lower than 143. Therefore, our halfway between answer of 100.5 above is correct.
Halfway Between
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Halfway Between 58 and 144
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