When you ask "What number is halfway between 49 and 221?" 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=221.
To find the number halfway between 49 and 221, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 49 and 221 into our formula, we get:
(49 + 221)/2 = 135
Thus, the number halfway between 49 and 221 is 135.
To check that our answer is correct, we subtract 49 from 135 and subtract 135 from 221 and compare the two numbers:
135 - 49 = 86
221 - 135 = 86
As you can see, the halfway number is 86 higher than 49 and 86 lower than 221. Therefore, our halfway between answer of 135 above is correct.
Halfway Between
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Halfway Between 49 and 222
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