Halfway between 30 and 80 is (30 + 80) ÷ 2 = 55.
The halfway point between 70 and 80 is (70 + 80) ÷ 2 = 75
(80 + 90) / 2 = 85Therefore, the number between 80 and 90 is 85.
It is: 50
65
115 is halfway between 80 and 150
Halfway between 30 and 80 is (30 + 80) ÷ 2 = 55.
The halfway point between 70 and 80 is (70 + 80) ÷ 2 = 75
105.105 is half way between 90 and 120.
It is: 55
(80 + 90) / 2 = 85Therefore, the number between 80 and 90 is 85.
(50+120)/2 = 170/2 = 85
73
It is: 70
It is: 50
80
If you drive I-80 most of the way, the halfway point is on I-80 between Clarion and Brookville, PA, northeast of Pittsburgh.