CPM Homework Banner

Home > CCG > Chapter Ch7 > Lesson 7.2.6 > Problem 7-112

7-112.

For each pair of numbers, find the number that is exactly halfway between them.  

  1. and  

    It may help to draw a number line.

    A horizontal axis with 7 tick marks. The first tick mark is 9 and the last tick mark is 15.

    Count towards the middle from both sides.

    Count towards the middle from both sides. The middle is 12. From 9 to the middle is 3 jumps to the right. From 15 to 12 is 3 jumps to the left.

  1. and  

    Find the average of the two numbers.

     

  1. and