When you ask "What number is halfway between 7 and 387?" 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=387.
To find the number halfway between 7 and 387, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 7 and 387 into our formula, we get:
(7 + 387)/2 = 197
Thus, the number halfway between 7 and 387 is 197.
To check that our answer is correct, we subtract 7 from 197 and subtract 197 from 387 and compare the two numbers:
197 - 7 = 190
387 - 197 = 190
As you can see, the halfway number is 190 higher than 7 and 190 lower than 387. Therefore, our halfway between answer of 197 above is correct.
Halfway Between
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Halfway Between 7 and 388
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