When you ask "What number is halfway between 3 and 70?" 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=70.
To find the number halfway between 3 and 70, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 3 and 70 into our formula, we get:
(3 + 70)/2 = 36.5
Thus, the number halfway between 3 and 70 is 36.5.
To check that our answer is correct, we subtract 3 from 36.5 and subtract 36.5 from 70 and compare the two numbers:
36.5 - 3 = 33.5
70 - 36.5 = 33.5
As you can see, the halfway number is 33.5 higher than 3 and 33.5 lower than 70. Therefore, our halfway between answer of 36.5 above is correct.
Halfway Between
Find halfway between two other numbers here!
Halfway Between 3 and 71
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