🎓 Algorithm & Patterns – Year 3 (ACARA Code : AC9M3N07)
🎯Focus:
🔍 identify multiples of 2, 5 and 10
🧠 use simple rules to test numbers quickly
📈 notice patterns in lists of multiples
💰 use multiples when counting money and groups
✏️ explain how they know if a number is a multiple
Key Ideas (Quick Guide)
- What is a Multiple?
💡 A multiple is a number you get when you skip-count!
| 🎯 Multiple | 🧠 Easy Rule | 📝 Example |
|---|---|---|
| 2 | Ends in 0, 2, 4, 6 or 8 | 14 ✅ |
| 5 | Ends in 0 or 5 | 35 ✅ |
| 10 | Ends in 0 | 60 ✅ |
🎥Video Lessons
💡 Video Tips:
🧮 Practice counting by 2s, 5s and 10s
👀 Look for patterns in numbers around you
🛑 Pause and try each example yourself
🔢 Say the multiples out loud
💡 Watch for repeating digit patterns
🧩 Mini Quiz – Quick Check
Try these after watching the video:
❓Question 2: Which number is a multiple of 5? 42, 55 or 68
✅ Answer: 55
❓Question 3: Which number is a multiple of 10? 35, 70 or 45
✅ Answer: 70
❓Question 4: Multiples of 2 end in what digits?
✅ Answer: 0, 2 ,4, 6 and 8
❓Question 5: Which number is both a multiple of 5 and 10? 25, 40 or 15
✅ Answer: 40
Scored:
5/5 💯 = Champion!
3–4/5 🌟 = Great Work!
0–2/5 🔄 = Watch the video again!
📄 Sample Worksheet Preview
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📚 Other Lessons in This Unit
🚀 Learning Path (Recommended Order)
| Step | 🔗 Lesson | 💡 What You Learn |
|---|---|---|
| 1️⃣ | 🧠 Doubling and Halving Number Patterns Explained | Easy Math Algorithms for Kids | Learn how numbers grow and shrink using doubling and halving rules |
| 2️⃣ | 📝 Divisibility Rules for 2, 5 and 10 | How to Identify Multiples Fast (Easy Math Tricks for Kids) ⭐ You are here⭐ | Spot number patterns and quickly identify multiples |
| 3️⃣ | 💡Multiply by 3 Trick: Double and Add Method | Easy Mental Math Strategy for Kids | Use a step-by-step rule to multiply by 3 easily |
| 4️⃣ | 🪙How to Count 5c and 10c Coins Fast | Money Math for Kids (Multiples of 5 and 10) | Sort coins and calculate totals using multiplication |
Previous Lesson: ⬅️ Doubling and Halving Number Patterns Explained | Easy Math Algorithms for Kids
Next Lesson: ➡️ Multiply by 3 Trick: Double and Add Method | Easy Mental Math Strategy for Kids