# Lesson 8 Center Day 2

Let’s add within 100.

## Warm-up Number Talk: Add Within 100

Find the value of each expression mentally.

## Activity 1 Introduce Target Numbers, Add Tens or Ones

We are going to learn a new way to play Target Numbers. This time, your goal is to get as close to 95 as you can, without going over. You only get 6 turns. On each turn, you get to decide whether you want to add tens or ones to your number. Let’s play a round together. Each partner starts at 25.

## Activity 2 Centers: Choice Time

Choose a center.

Target Numbers

Number Puzzles

Five in a Row

## Activity 3 Addition Stories

Priya watched a football game.

The home team scored 35 points in the first half.

In the second half they scored 6 more points.

How many points did they score all together?

Show your thinking using drawings, numbers, or words.At the football game, 9 fans cheered for the visiting team.

There were 45 fans who cheered for the home team.

How many fans were at the game all together?

Show your thinking using drawings, numbers, or words.