Lesson 11-- Composing and Decomposing 4- Digit Numbers

Introduction

Hello Mathematicians! Today we will compose and decompose 4- digit numbers.

Take a look at this question. Jot down your thoughts in your notebook. Prove your answer using models, numbers, and words.

Which is More? Choice A 3 hundreds, 7 tens, 16 ones OR Choice B 3 hundreds, 8 tens, 6 ones

Video

Interactive

Part 1 Directions:

We built 1,463 with 1 thousand, 4 hundreds, 6 tens, and 3 ones, and we build 1,463 with 1 thousand, 0 hundreds, 46 tens, and 3 ones.
What other ways can you build 1,463?
Use the base ten blocks below to help you.
In your journal, draw a model. Then complete the following for each: ___ thousands, ___ hundreds, ___ tens, ___ ones

Part 2 Directions:

Open the interactive drawing link below, and make a copy.
With a partner, play 4- Digit Number WAR.
Each player will determine the value of the number represented by thousands, hundreds, tens, and ones. The player with the highest value in each "battle" wins.
Use place value blocks to help you.

4- Digit Number WAR Interactive Drawing

In Your Math Notebook:

Let’s get out our math journals and work through the following application problem. Make sure you read the problem carefully, draw a picture to match your thinking and write and solve an equation.

**Read, Draw, Write. DONE!**
R (Read the problem carefully.) Jay and Bella visited a candy warehouse. Candy is sold in crates of 1000, boxes of 100, packages of 10, and single pieces of candy. Jay purchased 9 crates, 2 boxes, 7 packages, and 4 single pieces of candy. How many pieces of candy did Jay purchase? Bella purchased 8 crates, 9 boxes, 9 packages, and 1 single piece of candy. How many pieces of candy did Bella purchase? Compare the amounts each child purchased. Use >, =, or <. Tell how you know which child purchased the most candy. D (Draw a picture.) W (Write and solve an equation.)

[CC BY 4.0] UNLESS OTHERWISE NOTED | IMAGES: LICENSED AND USED ACCORDING TO TERMS OF SUBSCRIPTION

Georgia Department of Education, Math