LESSON 3 Thousands, Hundreds, Tens, and Ones

Building Packs

The packs in your base-ten sets are models that represent cubes full of bits. If your set is made of plastic, then your packs are probably hollow. But you can imagine they are filled with bits or flats. Even though you cannot see what is inside, think of a pack as being full.
  1. Stack enough flats together to make a pile as high as a pack. How many flats would fill one pack?
  2. How many skinnies would you need to build a pack with skinnies? How do you know?
  3. How many bits would fill a pack? How do you know?

Use the Make a Pack pages in the Student Activity Book to play a game.

Packaging Large Orders of Chocos

Tom works at the TIMS Candy Company. One day, he took an order for 1243 Chocos. He made a table listing several ways to package the order.

  1. Each row in the table gives a partition of 1243. Write a number sentence to show the other partitions in each row in the table.
  2. Which of Tom's partitions uses the fewest base-ten pieces?