When you ask "What number is halfway between 31 and 546?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=31 and Y=546.
To find the number halfway between 31 and 546, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 31 and 546 into our formula, we get:
(31 + 546)/2 = 288.5
Thus, the number halfway between 31 and 546 is 288.5.
To check that our answer is correct, we subtract 31 from 288.5 and subtract 288.5 from 546 and compare the two numbers:
288.5 - 31 = 257.5
546 - 288.5 = 257.5
As you can see, the halfway number is 257.5 higher than 31 and 257.5 lower than 546. Therefore, our halfway between answer of 288.5 above is correct.
Halfway Between
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Halfway Between 31 and 547
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