Copy of Adding and Subtracting Integers with Balloons and Sandbags
Add and subtract integers by building expressions using balloons and sandbags in this interactive activity.
Putting It All Together
Answer these open ended questions on your own or with others to form deeper math connections.
What direction did the basket move when you added balloons? Sandbags?
What direction did the basket move when you subtracted balloons? Sandbags?
Suppose the basket had a starting position of 35 and you removed 5 sandbags. Where would the basket end up?
Suppose the basket had a starting position of 9 and you added 5 sandbags. Where would the basket end up?
Suppose the basket had a starting position of 16 and you removed 5 sandbags and added 10 balloons. Where would the basket end up?
What are noticing about the sandbags and balloons? What do they represent? How do you know?