18.8
(By the way, the number halfway between is also the "average" of the two numbers.)
abc = 158
376-218=158
218 is an even number, not odd!
218 = two hundred eighteen.
It is: 894-218 = 676
a number.
The number 218 is spelled "two hundred eighteen."
109average:= (28 + 190)/2= 218/2= 109
It is 218 plus 100 = 318
As an even number greater than 2, 218 is divisible by 2 and therefore composite. Its positive integer factors are: 1, 2, 109, 218
1, 2, 4, 29, 58, 79, 109, 116, 158, 218, 316, 436, 2291, 3161, 4582, 6322, 8611, 9164, 12644, 17222, 34444, 249719, 499438, 998876
The number is 1.