Skip Counting by Twos, Fives, and Tens

🎯 What Will We Learn Today?

Counting one by one is slow — let's learn skip counting! When you count by 2s, 5s, or 10s, you count much faster. This is also the secret to learning multiplication!

📚 What Is Skip Counting?

Skip counting means jumping over some numbers and counting by the same amount each time:

Count by 2s: 2, 4, 6, 8, 10, 12, ...

Count by 5s: 5, 10, 15, 20, 25, 30, ...

Count by 10s: 10, 20, 30, 40, 50, 60, ...

🎮 Skip Counting by 2s

Every time you count by 2, you're saying every even number:

2, 4, 6, 8, 10, 12, 14, 16, 18, 20

Real-life: Count pairs of shoes, eyes on faces, or wheels on bicycles!

✋ Skip Counting by 5s

Counting by 5s is easy — use your fingers! Each hand has 5 fingers:

5（1 hand）, 10（2 hands）, 15（3 hands）, 20（4 hands）, ...

Pattern: Numbers end in 5 or 0: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50

🔟 Skip Counting by 10s

Counting by 10s is even easier — the tens digit goes up by 1:

10, 20, 30, 40, 50, 60, 70, 80, 90, 100

Real-life: Count dimes（each is 10¢）or groups of 10 items!

🎵 The Number Patterns

Each skip counting pattern has a rhythm:

| Count by | Pattern in the Ones Place |
|----------|--------------------------|
| 2s | 2, 4, 6, 8, 0, 2, 4, 6, 8, 0... |
| 5s | 5, 0, 5, 0, 5, 0... |
| 10s | 0, 0, 0, 0, 0, 0... |

💡 Why Skip Counting Matters

Skip counting is the bridge to multiplication!

2, 4, 6, 8 → that's 2 × 1, 2 × 2, 2 × 3, 2 × 4

5, 10, 15, 20 → that's 5 × 1, 5 × 2, 5 × 3, 5 × 4

10, 20, 30, 40 → that's 10 × 1, 10 × 2, 10 × 3, 10 × 4

📝 Practice Problems

Count by 2s from 2 to 20.

What comes next? 15, 20, 25, ___

Count by 10s: 30, 40, 50, ___, ___

How many wheels on 5 bicycles?（Count by 2s!）

You have 4 hands. Count by 5s — how many fingers total?

🎮 Play a Game!

Practice counting with Canoe Penguins!