The answer is 1414
To find the number halfway between any two numbers x and y, add x and y, then divide the answer by 2. So for 21 and 35, 21+ 35 = 56. 56/2 = 28. You can check your answer by seeing that 21 + 7 = 28 and 35 - 7 = 28.
19.5 is halfway between 18 and 21
It is 20, the number halfway between the two middle values.
There is no distance between them.
The fraction 23/35 is halfway. 3/5 = 21/35 5/7 = 25/35
The number halfway between 7 and 31 is 19.
42
37
It is: (18+21)/2 = 19.5
21
Yes.