6 + 7

6 + 7 6 + 7 = ?

6 + 7 6 + 7 = ? Move 4 to the 6

6 + 7 = (6 + 4) + ? 10 + ? 6 7

6 + 7 = 10 + 3

6 + 7 = 13 10 3

6 + 7

Move 3 to the 7 6 + 7

6 + 7 = (7 + 3) + ?

6 + 7 = (7 + 3) + 3

6 + 7 = 10 + 3

6 + 7 = 13 10 3

1.) We want students to explain relationships using number properties: commutative, associative 2.) We want students to make tens. 3.) We want students to create and record equalities. 4.) We want students to practice to remember facts.

Ready?

How did you add?

8 + 5

I thought move 5 to fill the 10 8 + 5

I thought move 5 to fill the 10 8 + 5 = (5 + 5) + ? 8 + 5

8 + 5 = 10 + 3

8 + 5 = 10 + 3

8 + 5 = 13 10 3

I thought move 2 to fill the 10

Can you see it without moving it? Where do the 2 go? What is left?

READY?

8 + 6

READY?

7 + 5

7 + 5 = 7 + 3 + 2 7 + 5 = 5 + 5 + 2 7 + 5 = 10 + 2 7 + 5 = 12

READY?