What Does Subtracting 9 Mean?
Subtracting 9 is like taking away 9 things from a group.
Imagine you have 15 cookies and you eat 9 of them. How many are left? That's subtracting 9! We'll learn some easy tricks to solve these problems quickly.
Easy Steps to Subtract 9
1️⃣ Count back 9: Start with your number and count backwards 9 times
2️⃣ Use the -10 +1 trick: Subtract 10 (which is easy) then add 1 back
3️⃣ Practice with objects: Use toys or drawings to see the subtraction
Let's Practice Together!
Example 1: 14 - 9
Let's use the number line to subtract 9 from 14:
14
13
12
11
10
9
8
7
6
5
After counting back 9 from 14, we land on 5! So 14 - 9 = 5
Example 2: 17 - 9
Let's try the -10 +1 trick:
First subtract 10: 17 - 10 = 7
Then add 1 back: 7 + 1 = 8
Great job! 17 - 9 = 8
Parent Tips 🌟
- Use real objects: Have your child subtract 9 items from groups of toys, blocks, or snacks to make it concrete.
- Finger counting: Encourage using fingers to count back 9 - this builds number sense and confidence.
- Make it a game: Create flashcards and time how many they can solve in one minute, celebrating improvements.