CPM Homework Banner

Home > CC2 > Chapter 3 > Lesson 3.2.2 > Problem 3-46

3-46.

Find the value of each expression below. Change any subtraction problem to an equivalent addition problem. Draw a diagram with and tiles to justify your answer.  

  1.   

    The equivalent addition problem is .

  1.   

    The drawing should look something like this:

  1.   


    Remember to draw your diagram.

  1.   

    For the expression , draw three pairs of zeros ( & ). Then add negatives.  Then take out negatives. Remove any zeros.  What is left?