When you ask "What number is halfway between 42 and 132?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=42 and Y=132.
To find the number halfway between 42 and 132, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 42 and 132 into our formula, we get:
(42 + 132)/2 = 87
Thus, the number halfway between 42 and 132 is 87.
To check that our answer is correct, we subtract 42 from 87 and subtract 87 from 132 and compare the two numbers:
87 - 42 = 45
132 - 87 = 45
As you can see, the halfway number is 45 higher than 42 and 45 lower than 132. Therefore, our halfway between answer of 87 above is correct.
Halfway Between
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Halfway Between 42 and 133
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