Use a rule to complete a number sequence

Key Notes :

🌈 What is a Number Sequence?

• A number sequence is a list of numbers arranged in a specific order 📊
• The numbers follow a rule or pattern 🔁

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🧠 What is a Rule?

A rule tells us how the numbers change from one term to the next ➡️

Common rules include:

• Add a number ➕
• Subtract a number ➖
• Multiply by a number ✖️
• Divide by a number ➗

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🔍 How to Find the Rule

1. Look at the numbers carefully 👀
2. Find the difference between numbers (What is added or subtracted?) ➕➖
3. Check if numbers are multiplied or divided ✖️➗
4. Make sure the same rule works for all numbers ✅

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🧩 Types of Number Sequences

• Increasing sequence: numbers go up ⬆️
• Decreasing sequence: numbers go down ⬇️
• Skip counting: count by 2s, 5s, 10s, etc. ⏭️
• Mixed patterns: more than one rule 🔀

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✏️ Examples

• 2, 4, 6, 8, __
  👉 Rule: Add 2 ➕
• 20, 15, 10, __
  👉 Rule: Subtract 5 ➖
• 3, 6, 12, __
  👉 Rule: Multiply by 2 ✖️

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🎯 Steps to Complete a Sequence

1. Find the rule 🔍
2. Apply the rule to the last number ➡️
3. Write the missing number ✏️

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⭐ Helpful Tips

• Always check the pattern twice 🔁
• Use a number line if needed 📏
• Start with simple rules first 😊

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🎉 Remember!

👉 Every number sequence has a rule
👉 Finding the rule makes completing the sequence easy and fun! 😄✨

Learn with an example

Let’s practice!