When you ask "What number is halfway between 7 and 17?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=7 and Y=17.
To find the number halfway between 7 and 17, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 7 and 17 into our formula, we get:
(7 + 17)/2 = 12
Thus, the number halfway between 7 and 17 is 12.
To check that our answer is correct, we subtract 7 from 12 and subtract 12 from 17 and compare the two numbers:
12 - 7 = 5
17 - 12 = 5
As you can see, the halfway number is 5 higher than 7 and 5 lower than 17. Therefore, our halfway between answer of 12 above is correct.
Halfway Between
Find halfway between two other numbers here!
Halfway Between 7 and 18
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