When you ask "What number is halfway between 64 and 149?" 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=149.
To find the number halfway between 64 and 149, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 64 and 149 into our formula, we get:
(64 + 149)/2 = 106.5
Thus, the number halfway between 64 and 149 is 106.5.
To check that our answer is correct, we subtract 64 from 106.5 and subtract 106.5 from 149 and compare the two numbers:
106.5 - 64 = 42.5
149 - 106.5 = 42.5
As you can see, the halfway number is 42.5 higher than 64 and 42.5 lower than 149. Therefore, our halfway between answer of 106.5 above is correct.
Halfway Between
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Halfway Between 64 and 150
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