Question

If point B is halfway between points A and C, what number does it represent?​

Answer 1

Answer: B represents 7

This problem is asking us to find halfway between 2 and 12.

[Method One]

12 - 2 = 10

-

10 / 2 = 5

-

2 + 5 = 7

or

12 - 5 = 7

[Method Two]

`\displaystyle (2+12)/(2) =(14)/(2) =7`

[Method Three]

We can count up from 2 and down from 12 until we hit the middle

2 12

3 11

4 10

5 9

6 8

7 7