# Surf for More Math

## CHAPTER 2: NUMERATION

**Lesson 11: Skip Counting by 3s and 4s**

Use these interactive activities to encourage students to have fun on the Web while learning about skip counting by 3s and 4s. Students can try these activities on their own or in pairs.

**Goal**

Skip count forward and backward by 3s and 4s.

**Builds Upon**

Student Book pages 50–51

**Instructions for Use**

Skip Count by 3s to 36 asks students to fill in missing numbers by counting by 3s to 36.

Skip count by 3s to determine which number goes in a blank space in the list of numbers. Click on the blank space, then select the correct number from the box that appears. When you’re done, click “New Game” to try another number list. For an extra challenge, try Skip Count by 3s to 90 to practise skip counting by 3s to 90.

Skip Counting by 3s has students fill in a missing number by counting by 3s.

Type the number to fill in the blank space by counting by 3s. Your answer is correct if the face changes to a smile. To do another problem, click on “Do it again” at the bottom. To practise skip counting by 3s with numbers up to 70, click on 70 at the bottom. To practise with numbers up to 99, click on 99.

Skip Count by 4s to 48 asks students to fill in missing numbers by counting by 4s to 48.

Skip count by 4s to determine which number goes in a blank space in the list of numbers. Click on the blank space, then select the correct number from the box that appears. When you’re done, click “New Game” to try another number list. For an extra challenge, try Skip Count by 4s to 120 to practise skip counting by 4s to 120.