# Lesson 4 Solve Multiplicative Comparison Problems with Large Numbers

• Let’s represent and solve multiplicative comparison problems with larger numbers.

## Warm-up Notice and Wonder: Too Many Times More?

What do you notice? What do you wonder?

## Problem 1

Mai and Andre compare the number of pages they read on the first day of the reading competition.

What would be a good estimate for the number of pages Andre read?

## Problem 2

The diagram shows the pages Lin and Kiran read on one day of the reading competition.

1. Complete the statement and explain how you know.

• Kiran read times as many pages as Lin.

2. Write a multiplication equation that compares the pages read by Lin and Kiran.

3. How many total pages did Kiran read?

## Problem 3

1. How many times as many pages did Han read? Explain how you know.

2. Write a multiplication equation to compare the pages read by Han and Jada. Use a symbol to represent the unknown.

## Problem 4

1. How is this diagram different from the earlier diagrams?

2. Write a multiplication equation to compare the pages read by Elena and Clare. Use a symbol to represent the unknown.

3. How many times as many pages does Elena read as Clare?

## Activity 2 Who Read More?

For each situation:

• Write an equation to represent the situation. Use a symbol to represent the unknown.

• Draw a diagram to show the comparison.

## Problem 1

1. Equation:

2. Diagram:

3. How many books did Diego read?

## Problem 2

Tyler has some books. Clare has 72 books, which is 12 times as many books as Tyler has.

1. Equation:

2. Diagram:

3. How many books does Tyler have?

## Problem 3

1. Equation:

2. Diagram:

3. Complete the statement:

## Problem 1

Diego has 8 songs on his playlist. Mai has 3 times as many songs as Diego.

1. Write an equation that represents the situation.

2. Draw a diagram that represents the situation.

3. Explain how the diagram and equation are related.

4. How many songs are on Mai’s playlist?