When you ask "What number is halfway between 7 and 649?" 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=649.
To find the number halfway between 7 and 649, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 7 and 649 into our formula, we get:
(7 + 649)/2 = 328
Thus, the number halfway between 7 and 649 is 328.
To check that our answer is correct, we subtract 7 from 328 and subtract 328 from 649 and compare the two numbers:
328 - 7 = 321
649 - 328 = 321
As you can see, the halfway number is 321 higher than 7 and 321 lower than 649. Therefore, our halfway between answer of 328 above is correct.
Halfway Between
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Halfway Between 7 and 650
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