The halfway point between two numbers is found by calculating the average of the two numbers. In this case, the average of -20 and 10 is (-20 + 10) / 2 = -10 / 2 = -5. Therefore, the number halfway between -20 and 10 is -5.
It is: 15
17
the number between 2 and 20 is 11
-5
5 It is 15 more than -10 and 15 less than +20. To find the halfway point (the average), add the two numbers and divide by 2. -10 + 20 = 10 divided by 2 = 5
15
20
30
It is: 15
17
It is: 50
The fraction halfway between 2/5 and 9/10 is 13/20
the number between 2 and 20 is 11
-5
The number halfway between 18 and 22 can be found by taking the average of the two numbers. Adding 18 and 22 together gives us 40, and dividing by 2 gives us 20. Therefore, the number halfway between 18 and 22 is 20.
This is the same as finding the "mean" of the number. So we add the two numbers together then divide that by 2. If we want the number halfway between 5 and 7, we add them together, 5+7=12 then divide by 2, 12/2=6. So 6 is between 5 and 7.
(10-20)/2 = -10/2 = negative 5