When you ask "What number is halfway between 1 and 200?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=1 and Y=200.
To find the number halfway between 1 and 200, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 1 and 200 into our formula, we get:
(1 + 200)/2 = 100.5
Thus, the number halfway between 1 and 200 is 100.5.
To check that our answer is correct, we subtract 1 from 100.5 and subtract 100.5 from 200 and compare the two numbers:
100.5 - 1 = 99.5
200 - 100.5 = 99.5
As you can see, the halfway number is 99.5 higher than 1 and 99.5 lower than 200. Therefore, our halfway between answer of 100.5 above is correct.
Halfway Between
Find halfway between two other numbers here!
Halfway Between 1 and 201
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