# Lesson 1 Addition Fluency Within 10

Let’s add within 10.

## Warm-up How Many Do You See: Within 10

How many do you see?

How do you see them?

## Activity 1 Sums I’ve Got

Color the sums you know the value of from memory.

Write each sum that is not colored, on an index card.

Use the cards to practice these sums.

## Activity 2 Centers: Choice Time

Choose a center.

Check it Off

Number Puzzles

Capture Squares