## CHAPTER 9: MULTIPLYING MULTI-DIGIT NUMBERS

**Lesson 4: Multiplying Using Expanded Form **

Use these interactive activities to encourage students to have fun on the Web while learning about multiplication of multi-digit numbers. Students can try these activities on their own or in pairs.

**Goal**

Multiply 2-digit numbers by 1-digit numbers using expanded form.

**Builds Upon **

Student Book pages 318-321

**Instructions for Use**

**Math Journey** allows students to apply mental mathematics strategies and solve a given multiplication problem.

To use Math Journey, read the instructions on the opening screen. Select the “All Multiplication” combination or click all the check boxes under “Multiplication”. Click on “Begin the Game” to start your journey. Travel around the world by answering math problems using multiplication. The journey begins and ends in London, and has stops in 30 cities along the way. To board the plane to each new city, you must answer a math problem correctly. If you get a problem wrong, you have "missed your flight". Miss three flights and the game is over.