# Lesson 4 Sums of 10

Let’s find all the ways to make 10.

## Warm-up True or False: Equal Expressions

Decide if each statement is true or false.

Be prepared to explain your reasoning.

## Activity 1 Shake and Spill: 10 Counters

Today you will play Shake and Spill with 10 counters. When you write the equation to represent your counters, make sure it shows how many red counters and how many yellow counters you got.

## Activity 2 All The Ways To Make 10

Show all the ways to make 10.

How do you know that you have found all the ways?

Be ready to explain your thinking in a way that others will understand.

## Activity 3 Centers: Choice Time

Choose a center.

Number Puzzles

Check it Off

Find the Pair

## Practice Problem

## Problem 1

Write an equation that matches this 10-frame.

Write 2 equations that show other ways to make 10.