When you ask "What number is halfway between 87 and 152?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=87 and Y=152.
To find the number halfway between 87 and 152, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 87 and 152 into our formula, we get:
(87 + 152)/2 = 119.5
Thus, the number halfway between 87 and 152 is 119.5.
To check that our answer is correct, we subtract 87 from 119.5 and subtract 119.5 from 152 and compare the two numbers:
119.5 - 87 = 32.5
152 - 119.5 = 32.5
As you can see, the halfway number is 32.5 higher than 87 and 32.5 lower than 152. Therefore, our halfway between answer of 119.5 above is correct.
Halfway Between
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Halfway Between 87 and 153
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