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LESSON 1 500 Hats
Ms. Alfonso's class is putting on a play about a Dr. Seuss book The 500 Hats of Bartholomew Cubbins. In the book, Bartholomew must take off his hat when the king passes by in a parade. When Bartholomew takes off his hat, another hat appears on his head. So he has one hat in his hand and another on his head. In the story, Bartholomew takes off his hat 500 times and 499 more hats appear on his head. To get ready for the play, the class must make 500 paper hats.
- Chris's group made 28 hats. Julia's group made 44 hats. How many hats did both groups make altogether?
- How did Julia use tens and ones to add?
- How did Chris use tens and ones?