When you ask "What number is halfway between 42 and 497?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=42 and Y=497.
To find the number halfway between 42 and 497, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 42 and 497 into our formula, we get:
(42 + 497)/2 = 269.5
Thus, the number halfway between 42 and 497 is 269.5.
To check that our answer is correct, we subtract 42 from 269.5 and subtract 269.5 from 497 and compare the two numbers:
269.5 - 42 = 227.5
497 - 269.5 = 227.5
As you can see, the halfway number is 227.5 higher than 42 and 227.5 lower than 497. Therefore, our halfway between answer of 269.5 above is correct.
Halfway Between
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Halfway Between 42 and 498
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