When you ask "What number is halfway between 49 and 207?" 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=207.
To find the number halfway between 49 and 207, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 49 and 207 into our formula, we get:
(49 + 207)/2 = 128
Thus, the number halfway between 49 and 207 is 128.
To check that our answer is correct, we subtract 49 from 128 and subtract 128 from 207 and compare the two numbers:
128 - 49 = 79
207 - 128 = 79
As you can see, the halfway number is 79 higher than 49 and 79 lower than 207. Therefore, our halfway between answer of 128 above is correct.
Halfway Between
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Halfway Between 49 and 208
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