Lesson objective: Represent numbers in different but equivalent ways.

This lesson provides an opportunity for students to apply their knowledge and understanding of place value to a real-life situation. Students are asked to represent the number 548 multiple ways in order to win an online contest.

Key Concept students will use:

- We can represent three-digit numbers in different but equivalent ways.

Skills students will use:

- a bundle of ten tens can be thought of as a hundred
- the digits in a three-digit number represent hundreds, tens, and ones, from left to right
- understanding that ten ones make a ten (Grade 1, Unit 1)

Students engage in Mathematical Practice 8 (Look for and express regularity in repeated reasoning) as they discover patterns when representing a number in a variety of ways.

**Key vocabulary: **

- digit
- equivalent
- place value
- represent
- strategies
- three-digit

**Special materials needed:**

- base ten blocks if needed