Grade: 5, Topic(s): comparison, place value

## Purpose

To build fluency reading and writing large numbers

whiteboard and marker or paper and pencil (for individual students)

Write 5 different numbers between 1 thousand and 10 billion on the board. Remind students that these numbers have as few as 4 and not more than 10 digits. As a class, read the 5 different numbers on the board. Then, students work in pairs and each person writes down three numbers between 1 thousand and 10 billion. Students then switch papers and take turns reading the numbers aloud and checking each other.

Part 1 invites the class to read 5 different numbers on board that range between 1 thousand and 1 billion. Part 2 asks each person to write three different numbers between 1 thousand and 1 billion that their partner will read aloud. The extension challenges students to read and write numbers that extend into the 100 billions.

Together, let’s read the numbers on the board that range between one thousand and 10 billion. Here we go!

Examples:

- 38,651
- 5,421
- 690,001
- 34,398,160
- 6,722,456

*While children are enjoying their building of mastery, feel free to repeat. When children are eager for more, try Part 2.*

On a piece of paper, you and your partner will each write down three different numbers between 1 thousand and 10 billion. When I say, SWITCH, trade papers and see if you can each name the three numbers that your partner wrote down.

If some pairs finish quickly: Who wrote down the biggest number? Can you order your partner’s numbers from* least* to *greatest*?

*As always, when children seem excited for a new challenge, move on.*

Let’s keep going with even bigger numbers! Write a number between 1 thousand and 100 billion. (Then ask students to read their numbers aloud.)

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