# Lesson 20 A Trip to the Zoo

Let’s solve story problems.

## Warm-up Number Talk: Using 10 +

Find the value of each expression mentally.

## Activity 1 How Many Reptiles?

Jada went to the zoo with her family.

They went to the reptile exhibit and saw 8 snakes, 7 iguanas, and 5 frogs.

How many reptiles did Jada’s family see?

Show your thinking using drawings, numbers, or words.

## Activity 2 Zoo Exhibits

In the bird exhibit, Jada saw 3 herons, 6 hawks, and 7 hummingbirds.

How many birds did Jada see?

Show your thinking using drawings, numbers, or words.Next Jada went to the large cat exhibit.

There were 8 lions, 4 tigers, and 3 cheetahs.

How many large cats were there?

Show your thinking using drawings, numbers, or words.Finally, Jada went to the petting zoo.

She petted 8 goats, 7 sheep, and 4 pigs.

How many animals did Jada pet?

Show your thinking using drawings, numbers, or words.

## Practice Problem

## Problem 1

Jada has 6 connecting cubes.

Han has 8 connecting cubes.

Lin has 5 connecting cubes.

How many cubes do Jada, Han, and Lin have all together?

Show your thinking using drawings, numbers, or words.