# Surf for More Math

## CHAPTER 3: ADDING AND SUBTRACTING DECIMALS

**Lesson 7: Subtracting Decimals by Regrouping **

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

**Goal**

Regroup to solve subtraction problems.

**Builds Upon**

Student Book pages 102–105

**Instructions for Use**

**Subtraction of Decimals** allows students to practise subtracting decimals.

Read the instructions and then scroll down to the “Practice” box. Click “Start”, subtract the decimals and then click on the button that shows your answer. The activity will tell you if you are correct. Click “Start” to get a new problem.

**Adding and Subtracting Whole Numbers and Decimals** allows students to solve various types of questions involving adding and subtracting whole numbers and decimals.

Play this game like jeopardy. Select a category and point value and then answer the question.

**Math Advantage** is a quiz of 10 questions involving adding and subtracting decimals.

Solve each problem using whatever strategies you want and select the correct answer from the options shown. Click “Submit answers” to check how many questions you answered correctly.