When you ask "What number is halfway between 8 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=8 and Y=649.
To find the number halfway between 8 and 649, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 8 and 649 into our formula, we get:
(8 + 649)/2 = 328.5
Thus, the number halfway between 8 and 649 is 328.5.
To check that our answer is correct, we subtract 8 from 328.5 and subtract 328.5 from 649 and compare the two numbers:
328.5 - 8 = 320.5
649 - 328.5 = 320.5
As you can see, the halfway number is 320.5 higher than 8 and 320.5 lower than 649. Therefore, our halfway between answer of 328.5 above is correct.
Halfway Between
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Halfway Between 8 and 650
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