20
-5
halfway between 154 and 164 is 10
10 is the number halfway between -5 and 15.It is: 5
(10-20)/2 = -10/2 = negative 5
Halfway between 10 and 15 is (10 + 15) ÷ 2 = 121/2
Add two numbers together and divide sum by two to find midway point.(-10+6)/2=-4/2=-2Therefore, the number that is halfway between -10 and 6 is -2 (negative two).
10
15
-5
10.25
Exactly halfway between them is 10.15.