# Lesson 6 Compare Reptile Lengths in Story Problems

Let’s solve story problems about reptile lengths.

## Warm-up Number Talk: Fives and Tens

Find the value of each expression mentally.

## Activity 1 Whose Pet is Longer?

## Problem 1

Lin’s pet lizard is 62 cm long. It is 19 cm shorter than Jada’s. How long is Jada’s pet lizard?

Whose pet is longer?

Circle the diagram that matches the story.

Solve. Show your thinking.

Jada’s pet lizard is cm long.

## Problem 2

Diego and Mai have pet snakes. Mai’s snake is 17 cm longer than Diego’s. Mai’s snake is 71 cm. How long is Diego’s pet snake?

Whose pet is shorter?

Circle the diagram that matches the story.

Solve. Show your thinking.

Diego’s pet snake is cm long.

## Activity 2 Guess My Reptiles

**Partner A’s reptiles**

**Partner B’s reptiles**

day gecko, 28 cm

ribbon snake, 83 cm

komodo dragon, 98 cm

gila monster, 55 cm

baby cobra, 46 cm

baby alligator, 71 cm

iguana, 65 cm

ringneck snake, 38 cm

Choose one reptile from your list and one reptile from your partner’s list.

Fill in the blanks to create a story problem using the lengths of the reptiles you picked. Then share your sentences with your partner.

My reptile is cm long.

It is cm (shorter/longer) than one of your reptiles.

Which reptiles did your partner pick? Show your thinking.

## Practice Problem

## Problem 1

Andre’s snake is 85 centimeters long. His lizard is 28 centimeters long. How many centimeters longer is Andre’s snake than his lizard? Show your thinking.