When you ask "What number is halfway between 73 and 542?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=73 and Y=542.
To find the number halfway between 73 and 542, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 73 and 542 into our formula, we get:
(73 + 542)/2 = 307.5
Thus, the number halfway between 73 and 542 is 307.5.
To check that our answer is correct, we subtract 73 from 307.5 and subtract 307.5 from 542 and compare the two numbers:
307.5 - 73 = 234.5
542 - 307.5 = 234.5
As you can see, the halfway number is 234.5 higher than 73 and 234.5 lower than 542. Therefore, our halfway between answer of 307.5 above is correct.
Halfway Between
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Halfway Between 73 and 543
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