Math Focus 2
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# Surf for More Math

## CHAPTER 6: NUMBER TO 100

### Lesson 8: Describing a Number in Different Ways

Use these interactive activities to encourage students to have fun on the Web while learning about numbers up to 100. Students can try these activities on their own or in pairs.

Goal

Represent and describe two-digit numbers using expressions.
[C, CN, V]

Instructions for Use

Regrouping Tens and Ones I allows students to regroup numbers expressed in tens and ones.

To use Regrouping Tens and Ones I, click Continue as Guest if a pop-up window appears. This will let you access the site. Enter digits between 0 and 9 in each box so that the expression on the left is equal to the expression on the right for the 2-digit number. Click Submit. When you are done playing, click Submit & Finish.

Regrouping Tens and Ones II allows students to express numbers in different ways.

To use Regrouping Tens and Ones II, select the correct expression that is another way of expressing the given 2-digit number. Click Submit. When you are done playing, click Submit & Finish.

Place Value has students work through different activities related to place value and 2-digit numbers.

To use Place Value, select Lesson 6.1, 6.2, 6.3, 6.4, 6.5, or 6.6. Follow the instructions for each lesson. Once you have completed an activity, click on Unit 2: Numbers Through 100 to get back to the lesson listing.