Math Focus 4

# Surf for More Math

## CHAPTER 2: NUMERATION

### Lesson 5: Writing Number Words

Use these interactive activities to encourage students to have fun on the Web while learning about numeration. Students can try these activities on their own or in pairs.

Goal

Write numbers to 10 000 using words.

Builds Upon

Student Book pages 48–49

Instructions for Use

Writing Numbers allows students to read a number written in words and write the number in numerals.

To start Writing Numbers, click on the “Writing Numbers” link on the left.

To use Writing Numbers, type in the number in numerals that equals the number shown in words, and then click on the “Enter” button.

Really Big Numbers allows students to practice writing numbers using words.

To start Really Big Numbers, click on the “Really Big Numbers!!” link.

To use Really Big Numbers, type in a number, and then click on the “Click here.” button to see the answer in words.

Place Value to 100 Thousands allows students to read a number written in words and write the number in numerals.

To start Place Value to 100 Thousands, click on the “Place Value to 100 Thousands” link, and then click on the green arrow to begin.

To use Place Value to 100 Thousands, in the number in numerals that equals the number shown in words, and then click on the “Check Answer” button.