When you ask "What number is halfway between 16 and 18?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=16 and Y=18.
To find the number halfway between 16 and 18, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 16 and 18 into our formula, we get:
(16 + 18)/2 = 17
Thus, the number halfway between 16 and 18 is 17.
To check that our answer is correct, we subtract 16 from 17 and subtract 17 from 18 and compare the two numbers:
17 - 16 = 1
18 - 17 = 1
As you can see, the halfway number is 1 higher than 16 and 1 lower than 18. Therefore, our halfway between answer of 17 above is correct.
Halfway Between
Find halfway between two other numbers here!
Halfway Between 16 and 19
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