When you ask "What number is halfway between 18 and 674?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=18 and Y=674.
To find the number halfway between 18 and 674, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 18 and 674 into our formula, we get:
(18 + 674)/2 = 346
Thus, the number halfway between 18 and 674 is 346.
To check that our answer is correct, we subtract 18 from 346 and subtract 346 from 674 and compare the two numbers:
346 - 18 = 328
674 - 346 = 328
As you can see, the halfway number is 328 higher than 18 and 328 lower than 674. Therefore, our halfway between answer of 346 above is correct.
Halfway Between
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Halfway Between 18 and 675
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