# Surf for More Math

## Lesson 1 - Relating Subtraction to Addition

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

**Goal **

Use fact families to relate addition and subtraction.

**Builds Upon **

Student Book pages 80-81

**Instructions for Use **

Inverse
Operations lets students practice relating addition to subtraction
using fact families.

To use Inverse Operations, have students read and solve the questions.

Relating
Addition to Subtraction lets students relate addition to subtraction.

To use Relating Addition to Subtraction, click
the 'Start' button and read the equation in the first text field. Have
students click the button to indicate if students has the correct answer.