# Surf for More Math

## CHAPTER 6: MULTIPLICATION

**Lesson 8: Multiplying Two-Digit Numbers **

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

**Goal**

Multiply two-digit numbers using your choice of strategies.

**Builds Upon**

Student Book page 201

**Instructions for Use**

**Speed Grid: Multiplication** allows students to practise two-digit multiplication.

To use Speed Grid: Multiplication, read the instructions and select the number of questions you want to answer by clicking the up or down arrow. Select the time limit using the same method. Click the “Start” button to begin. Answer each question set by clicking on two numbers that complete the sentence and clicking “Next”. Correctly answer each question to move on to the next one. Aim to answer all questions before time runs out.

**Arithmetic Four** allows students to practise two-digit multiplication using a variety of strategies.

To use Arithmetic Four, get into groups of two. Select a time limit per question from a drop-down list. Select difficulty level 1 or 2. Choose the Whole Number Multiplication to practise two-digit multiplication. To start playing, click on “Start Game”. This game is played like Connect Four, where each player attempts to get four of his or her coloured pieces in a row, either horizontally, vertically, or diagonally. One player will use red pieces while the other will play with black pieces. Click “Ready” to begin the game. Answer the question in the white box before time runs out. Click “Answer” to check your answer. Answering a question correctly allows you to place your piece in a column in an attempt to get four in a row.