The purpose of this activity is for students to learn Stage 4 of the How Close? center. Before playing, students remove the cards that show 10 and set them aside. Each student picks 8 cards and chooses 6 of them to create 2 three-digit numbers. Each student adds the numbers and writes an equation. The score for the round is the difference between each student’s sum and 1,000. Students pick new cards so that they have 8 cards in their hands and then start the next round. The player with the lower score after 10 rounds wins.

• “¿Qué estrategias usaron para sumar los números?” // “What strategies did you use to add the numbers?”

The purpose of this activity is for students to learn Stage 8 of the Five in a Row: Addition and Subtraction center. Students add within 1,000, with sums that require composing units when adding by place.

Then, students choose from previously introduced stages of these centers.

• Five in a Row
• How Close?

• “¿Qué les gustó de las actividades en las que trabajaron hoy?” // “What did you like about the activities you worked on today?”