When you ask "What number is halfway between 64 and 989?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=64 and Y=989.
To find the number halfway between 64 and 989, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 64 and 989 into our formula, we get:
(64 + 989)/2 = 526.5
Thus, the number halfway between 64 and 989 is 526.5.
To check that our answer is correct, we subtract 64 from 526.5 and subtract 526.5 from 989 and compare the two numbers:
526.5 - 64 = 462.5
989 - 526.5 = 462.5
As you can see, the halfway number is 462.5 higher than 64 and 462.5 lower than 989. Therefore, our halfway between answer of 526.5 above is correct.
Halfway Between
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Halfway Between 64 and 990
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