When you ask "What number is halfway between 75 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=75 and Y=143.
To find the number halfway between 75 and 143, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 75 and 143 into our formula, we get:
(75 + 143)/2 = 109
Thus, the number halfway between 75 and 143 is 109.
To check that our answer is correct, we subtract 75 from 109 and subtract 109 from 143 and compare the two numbers:
109 - 75 = 34
143 - 109 = 34
As you can see, the halfway number is 34 higher than 75 and 34 lower than 143. Therefore, our halfway between answer of 109 above is correct.
Halfway Between
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Halfway Between 75 and 144
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