When you ask "What number is halfway between 18 and 742?" 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=742.
To find the number halfway between 18 and 742, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 18 and 742 into our formula, we get:
(18 + 742)/2 = 380
Thus, the number halfway between 18 and 742 is 380.
To check that our answer is correct, we subtract 18 from 380 and subtract 380 from 742 and compare the two numbers:
380 - 18 = 362
742 - 380 = 362
As you can see, the halfway number is 362 higher than 18 and 362 lower than 742. Therefore, our halfway between answer of 380 above is correct.
Halfway Between
Find halfway between two other numbers here!
Halfway Between 18 and 743
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