The Magic of Adding 9
Adding 9 is like adding 10 and then taking away 1!
It's a special trick that makes adding numbers super easy. When you add 9 to a number, the answer is
always 1 less than if you added 10. Let's learn this magical math trick together!
How to Add 9
1️⃣ 1 Think of the number you're adding to 9
2️⃣ 2 Add 10 to that number (this is easy!)
3️⃣ 3 Now take away 1 from your answer
Let's Practice Together!
Example 1: 5 + 9 = ?
Let's use our magic trick:
1. Start with 5
2. Add 10: 5 + 10 = 15
3. Take away 1: 15 - 1 = 14
So 5 + 9 = 14! Easy peasy!
Example 2: 7 + 9 = ?
Let's try again:
1. Start with 7
2. Add 10: 7 + 10 = 17
3. Take away 1: 17 - 1 = 16
So 7 + 9 = 16! You're getting it!
Your Turn! Try 8 + 9
Can you use our magic trick?
1. Start with 8
2. Add 10: 8 + 10 =
3. Take away 1: 18 - 1 =
Parent Tips 🌟
- Finger counting: Have your child hold up the number they're adding to 9, then add 10 by counting all fingers plus one more, then take away 1.
- Real-world examples: "If you have 9 stickers and get 6 more, how many do you have?" makes the concept concrete.
- Make it a game: Challenge your child to race against you (let them win sometimes!) to solve 9+ problems using the trick.