When you ask "What number is halfway between 20 and 347?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=20 and Y=347.
To find the number halfway between 20 and 347, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 20 and 347 into our formula, we get:
(20 + 347)/2 = 183.5
Thus, the number halfway between 20 and 347 is 183.5.
To check that our answer is correct, we subtract 20 from 183.5 and subtract 183.5 from 347 and compare the two numbers:
183.5 - 20 = 163.5
347 - 183.5 = 163.5
As you can see, the halfway number is 163.5 higher than 20 and 163.5 lower than 347. Therefore, our halfway between answer of 183.5 above is correct.
Halfway Between
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Halfway Between 20 and 348
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