When you ask "What number is halfway between 3 and 143?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=3 and Y=143.
To find the number halfway between 3 and 143, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 3 and 143 into our formula, we get:
(3 + 143)/2 = 73
Thus, the number halfway between 3 and 143 is 73.
To check that our answer is correct, we subtract 3 from 73 and subtract 73 from 143 and compare the two numbers:
73 - 3 = 70
143 - 73 = 70
As you can see, the halfway number is 70 higher than 3 and 70 lower than 143. Therefore, our halfway between answer of 73 above is correct.
Halfway Between
Find halfway between two other numbers here!
Halfway Between 3 and 144
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