# Lesson 2 Match Representations of Tens

Let’s match different representations of numbers.

## Warm-up Estimation Exploration: Cubes and Towers

Round 1: How many cubes?

Record an estimate that is:

too low

about right

too high

Round 2: How many cubes?

Record an estimate that is:

too low

about right

too high

## Activity 1 Representations of Tens

Today you will play a game in which you try to find cards that match.

## Activity 2 It’s a Match!

Let’s read the task statement from the handout.

## Practice Problem

## Problem 1

How many connecting cubes are in each picture?