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

  1. 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.

  2. 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.

  3. 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.