Tyler and Clare are subtracting by place to find the value of 244 - 67. Tyler says he will decompose before
he starts. Clare says she agrees.
The diagrams show each student’s first step.
1
What is the same about Tyler and Clare’s diagrams? What is different?
What is the same about Tyler and Clare’s diagrams? What is different?
1
Work together to complete Tyler’s way and Clare’s way to find the value of 244 - 67.
Work together to complete Tyler’s way and Clare’s way to find the value of 244 - 67.
1
What do Tyler and Clare’s diagrams look like after the last step? What is the same about these diagrams? What is different?
What do Tyler and Clare’s diagrams look like after the last step? What is the same about these diagrams? What is different?
