When you ask "What number is halfway between 49 and 217?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=49 and Y=217.
To find the number halfway between 49 and 217, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 49 and 217 into our formula, we get:
(49 + 217)/2 = 133
Thus, the number halfway between 49 and 217 is 133.
To check that our answer is correct, we subtract 49 from 133 and subtract 133 from 217 and compare the two numbers:
133 - 49 = 84
217 - 133 = 84
As you can see, the halfway number is 84 higher than 49 and 84 lower than 217. Therefore, our halfway between answer of 133 above is correct.
Halfway Between
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Halfway Between 49 and 218
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