What do you notice? What do you wonder?

Clare’s strategy

divide. three hundred sixty four divided by 13. With two image underneath. Left Image, 4 rows. First row: 13 times 10 equals one hundred thirty. Second row: 13 times 20 equals two hundred sixty. Third row: 13 times 5 equals sixty 5. Fourth row: 13 times 3 equals 39. Right image. 7 rows. First row: three hundred sixty four. Second row: minus two hundred sixty. Horizontal line. Third row: one hundred four. Fourth row: minus sixty 5. Horizontal line. Fifth row: 39. Sixth row: minus 39. Horizontal line. Seventh row 0.

Jada’s strategy

Take turns:

1. Choose a set of expressions that when added together have the same value as . Not all expressions will be used.

2. Explain to your partner how you know that your cards represent a sum that has the same value as  . 

   (Pause for teacher directions.)

3. Choose one of the sets of expressions. Use it to find the value of .

Choose one of the partial-quotients for each expression. Use this partial quotient to begin finding the value of the quotient.

4. How did you decide which partial quotient to use to begin finding the quotient? Did you change your mind and begin with a different partial quotient? Explain or show your reasoning.