When you ask "What number is halfway between 7 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=7 and Y=207.
To find the number halfway between 7 and 207, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 7 and 207 into our formula, we get:
(7 + 207)/2 = 107
Thus, the number halfway between 7 and 207 is 107.
To check that our answer is correct, we subtract 7 from 107 and subtract 107 from 207 and compare the two numbers:
107 - 7 = 100
207 - 107 = 100
As you can see, the halfway number is 100 higher than 7 and 100 lower than 207. Therefore, our halfway between answer of 107 above is correct.
Halfway Between
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Halfway Between 7 and 208
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