# Surf for More Math

## Lesson 2 - Dividing by 10

To encourage students to have fun on the Web while learning about Dividing by 10, here are some games and interactive activities they can do on their own or in pairs.

### Goal

Use regrouping to divide decimal numbers by 10.

### Builds Upon

Student Book pages 274-276

### Instructions for Use

Base Ten Blocks prompts students to regroup to divide decimal numbers by 10.

To use Base Ten Blocks, click the place value backdrop to decimals. Click on a block and drag it into the workspace. Select a block by clicking on it. Once selected, the block can be moved to any location on the workspace. To remove a block, drag it to the recycling bin. Click on the tools on the top panel to select and drag, rotate, lasso blocks to group them, break larger blocks into the next size down, or glue smaller blocks to form the next size up.

To regroup blocks, click on the hammer, and then on the block in the workspace. The red hundreds block, will regroup into 10 blue tens blocks. The blue tens block, will regroup into 10 green ones blocks.

Interactive Calculator gives students practice dividing decimal numbers by 10.

To use the Interactive Calculator, start by pressing any number - try 14. This number will appear in the window of the calculator. Press the divide button on the calculator, and press 10. Press the ' =' button on the calculator to show the answer.