When you ask "What number is halfway between 1 and 285?" 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=285.
To find the number halfway between 1 and 285, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 1 and 285 into our formula, we get:
(1 + 285)/2 = 143
Thus, the number halfway between 1 and 285 is 143.
To check that our answer is correct, we subtract 1 from 143 and subtract 143 from 285 and compare the two numbers:
143 - 1 = 142
285 - 143 = 142
As you can see, the halfway number is 142 higher than 1 and 142 lower than 285. Therefore, our halfway between answer of 143 above is correct.
Halfway Between
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Halfway Between 1 and 286
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