# Lesson 18 Lots of Milk

• Let’s make estimates with big numbers.

## Warm-up Estimation Exploration: How Big is the Milk Carton?

What is the volume of the milk carton in cubic inches?

Record an estimate that is:

too low

too high

## Activity 1 Milk for Everyone

In each situation, estimate the volume of milk, in cubic inches, that you or the group would drink in one day. Explain your reasoning.

1. you

5. 10 schools

## Activity 2 How Big is 1,000,000?

Estimate the number of days it would take each group to drink 1,000,000 cubic inches of milk. Explain your reasoning.

1. 10 local schools

5. you

## Problem 1

There are 418 students at a school. Han estimates that they each drink about 5 glasses of water each day.

1. About how many glasses of water do all of the students together drink in one day?

2. About how many glasses of water do all of the students together drink in one week?

3. About how many glasses of water do all of the students together drink in one month?

4. About how long do you think it would take all of the students to drink 1,000,000 glasses of water?