1. What information do you need to know to complete the data table?
  2. Is the mass of zero marbles 0 grams? Explain.
  3. Write a number sentence to show the mass of the box and zero marbles.
  4. Write a number sentence to show the mass of the box and 1 marble.

Complete the data table, make a point graph, and solve the problems on the Michael's Marbles pages in the Student Activity Book.