(10-20)/2 = -10/2 = negative 5
15
17.5 It is 2.5 more than 15 and 2.5 less than 20 To find a halfway point (which is also the average), add the numbers together and divide by 2.
-5 It is 15 more than -20 and 15 less than 10 To find a halfway point (which is also the average), add the numbers together and divide by 2. -20 + 10 = -10 and -10/2 = -5
20
(10-20)/2 = -10/2 = negative 5
-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
It is: 15
35
0.3 is halfway between 20% and 40%
17.5 It is 2.5 more than 15 and 2.5 less than 20 To find a halfway point (which is also the average), add the numbers together and divide by 2.
-5 It is 15 more than -20 and 15 less than 10 To find a halfway point (which is also the average), add the numbers together and divide by 2. -20 + 10 = -10 and -10/2 = -5
20
The number halfway between 15 and 25 can be found by taking the average of the two numbers. To calculate this, add 15 and 25 together to get 40, then divide by 2 to get 20. Therefore, the number halfway between 15 and 25 is 20.
-20 - 15 = -35