Addition facts – sums up to 20
key notes :
🧠 What is Addition?
- ➕ Addition means putting things together to find out how many in all.
- Example: 🍎 5 apples + 🍎 3 apples = 🍎 8 apples
🎯 Addition Facts up to 20
These are basic number combinations that add up to 20 or less.
Example:
- 1 + 1 = 2
- 5 + 5 = 10
- 7 + 8 = 15
- 10 + 10 = 20
💡 Doubles Facts
Doubles help in quick addition! ⚡
- 1 + 1 = 2 🍬
- 2 + 2 = 4 🦋
- 3 + 3 = 6 🐞
- 4 + 4 = 8 🌼
- 5 + 5 = 10 🖐️
🎲 Near Doubles
If you know doubles, you can add near doubles easily! 😄
- 4 + 5 → (4 + 4) + 1 = 9
- 6 + 7 → (6 + 6) + 1 = 13
🍭 Making 10 (Magic Number 10!)
Learn combinations that make 10 ✨
- 1 + 9 = 10
- 2 + 8 = 10
- 3 + 7 = 10
- 4 + 6 = 10
- 5 + 5 = 10
🧩 Add Zero and Add One
- Adding 0 keeps the number the same ➡️ 7 + 0 = 7
- Adding 1 makes the number go up by one ➡️ 7 + 1 = 8
🌟 Turn-around Facts (Commutative Property)
You can flip the numbers, and the sum stays the same 🔁
- 3 + 5 = 8 is the same as 5 + 3 = 8
📊 Practice Tips
- Use fingers 🖐️, counters 🍬, or beads 🔵 to add.
- Draw pictures ✏️ or use number lines to count on.
- Practice with flashcards 💌 and fun games 🎮.
🎉 Example Sums Up to 20
| 💬 Problem | 💡 Answer |
|---|---|
| 6 + 4 | 10 |
| 7 + 5 | 12 |
| 9 + 8 | 17 |
| 10 + 9 | 19 |
| 3 + 6 | 9 |
🌈 Remember
- Keep practicing every day! 💪
- Try to memorize addition facts like a song 🎶
- Learning addition makes math fun and easy! 😍
Learn with an example
⚾ Add. 0 + 3 =
- When you add 0 to a number, the number stays the same.
- 0 + 3 = 3
⚾ Add. 5 + 6 =
- You can count on to find 5 + 6.
- It is easier to start with the larger number. So, start at 6. Count on 5 times.
- You end at 11.
- 5 + 6 = 11
__________________________________________________
- You can also add using doubles plus one.
- Remember the doubles fact 5 + 5 = 10.
- Notice that 5 + 6 is 1 more. That makes 11.
- 5 + 6 = 11
⚾ Add. 5 + 1 =
- You can count on to find 5 +1.
- Start at 5 and count on 1 time.
- You end at 6.
- 5 + 1 = 6
Let’s practice!
