When you ask "What number is halfway between 69 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=69 and Y=649.
To find the number halfway between 69 and 649, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 69 and 649 into our formula, we get:
(69 + 649)/2 = 359
Thus, the number halfway between 69 and 649 is 359.
To check that our answer is correct, we subtract 69 from 359 and subtract 359 from 649 and compare the two numbers:
359 - 69 = 290
649 - 359 = 290
As you can see, the halfway number is 290 higher than 69 and 290 lower than 649. Therefore, our halfway between answer of 359 above is correct.
Halfway Between
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Halfway Between 69 and 650
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