Lesson 1 Add and Subtract to Compare
Let’s solve Compare problems with larger numbers.
Warm-up Which One Doesn’t Belong: Compare Representations
Which one doesn’t belong?
Activity 1 Movie Snacks
Use the bar graph to answer the questions.
What is the total number of students that chose popcorn or pretzels? Show your thinking.
How many more students chose nachos than chose popcorn? Show your thinking.
Activity 2 Build and Compare
Lin and Clare used cubes to make trains. What do you notice? What do you wonder?
Make trains with cubes.
partner
number of cubes
Partner A
Partner B
Find the total number of cubes you and your partner used. Show your thinking.
Find the difference between the number of cubes you and your partner used. Show your thinking.
Practice Problem
Problem 1
Here are some connecting cubes.
How many connecting cubes are there altogether? Show your thinking.
How many more cubes are there in train 1 than in train 2? Show your thinking.