Real-World Examples of Subtraction within 20 for Kids

📚 Quick Study Guide

• 🍎 Subtraction Basics: Taking away a number from another. We use the minus sign (-).
• 🔢 Subtraction within 20: This means the answer (the difference) will always be less than or equal to 20.
• 🧮 Subtraction Formula: $a - b = c$, where 'a' is the starting number, 'b' is the number being subtracted, and 'c' is the answer.
• 💡 Real-World Examples: Imagine you have 10 cookies 🍪 and eat 3. How many are left? 10 - 3 = 7 cookies!
• ➕ Related Addition: Subtraction is the opposite of addition. If 7 + 3 = 10, then 10 - 3 = 7.
• ✍️ Word Problems: Look for words like 'take away', 'less than', 'difference', 'remain', or 'left' which indicate subtraction.

🧪 Practice Quiz

1. What is 15 - 7?
   1. 6
   2. 7
   3. 8
   4. 9
2. Sarah has 12 balloons 🎈, and 4 pop. How many balloons are left?
   1. 6
   2. 7
   3. 8
   4. 9
3. If you have 18 candies 🍬 and give 5 to your friend, how many do you have left?
   1. 11
   2. 12
   3. 13
   4. 14
4. What is 20 - 9?
   1. 9
   2. 10
   3. 11
   4. 12
5. Tom has 14 toy cars 🚗. He gives 6 away. How many cars does Tom have now?
   1. 6
   2. 7
   3. 8
   4. 9
6. What is 11 - 3?
   1. 6
   2. 7
   3. 8
   4. 9
7. Lisa has 16 stickers ✨. She uses 8 stickers. How many stickers are left?
   1. 6
   2. 7
   3. 8
   4. 9