# Surf for More Math

## Lesson 2 - Dividing by 10

To encourage your child 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 your child 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 your child 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.