Addition sentences using number lines – sums up to 18
Key Notes:
🌈 What is Addition?
➕ Addition means putting together two or more numbers to find out how many in all.
💡 Example: 5 🍎 + 3 🍎 = 8 🍎
📏 What is a Number Line?
A number line is a straight line with numbers placed in order.
👉 It helps us to count and add easily.
🧮 Example: 0️⃣ — 1️⃣ — 2️⃣ — 3️⃣ — 4️⃣ — 5️⃣ — 6️⃣ — 7️⃣ — 8️⃣ — 9️⃣ … up to 18️⃣
🦋 How to Add Using a Number Line
1️⃣ Start at the first number on the number line.
2️⃣ Make jumps forward for the second number.
3️⃣ Where you land is the answer (sum)!
💡 Example:
👉 Add 6 + 5
- Start at 6
- Make 5 jumps forward
- You land on 11 🎉
✅ So, 6 + 5 = 11
🌻 Tips to Remember
🌟 Always move forward when adding ➕
🌟 Count each jump carefully
🌟 The last number you land on is your answer
🌟 Practice with numbers up to 18
🎨 Fun Practice Examples
🐰 4 + 3 = ? → Start at 4, jump 3 → Land on 7 🎉
🐢 9 + 8 = ? → Start at 9, jump 8 → Land on 17 🌟
🐶 5 + 6 = ? → Start at 5, jump 6 → Land on 11 💥
🧠 Why Use a Number Line?
✨ It helps us see how numbers grow.
✨ It makes addition fun and visual!
✨ Great for understanding counting and addition together.
🌟 Key Words to Remember
- ➕ Add = put together
- 🔢 Number line = line of numbers
- 🧮 Sum = total or answer
- 🪜 Jump = count forward
Learn with an example
🔎 Which addition sentence does this model show?

- 5 + 7 = 12
- 5 + 3 = 8
- 3 + 3 = 6
- 4 + 7 = 11
- Start at 5 and count on 3. The result is 8.

- The addition number sentence is:
- 5 + 3 = 8
🔎Which addition sentence does this model show?

- 7 + 2 = 9
- 3 + 5 = 8
- 7 + 5 = 12
- 5 + 2 = 7
- Start at 7 and count on 2. The result is 9.

- The addition number sentence is:
- 7 + 2 = 9
🔎Which addition sentence does this model show?

- 5 + 4 = 9
- 5 + 7 = 12
- 5 + 5 = 10
- 5 + 6 = 11
- Start at 5 and count on 4. The result is 9.

- The addition number sentence is:
- 5 + 4 = 9
Let’s practice!

