What Are Related Subtraction Facts?
Subtraction facts are like a family - they all belong together!
When numbers are related in subtraction, we can use one fact to help us remember others. It's like knowing one secret that helps you solve many problems!
How to Find Related Subtraction Facts
1️⃣ Start with a subtraction fact you know (like 10 - 3 = 7)
2️⃣ Switch the numbers around to make a new fact (10 - 7 = 3)
3️⃣ Find other facts in the same "fact family" (3 + 7 = 10 and 7 + 3 = 10)
Let's Practice Together!
Example 1: The Cookie Jar
There were 12 cookies in the jar. You ate 5 cookies. How many are left?
12 - 5 =
Now let's find the related facts:
Example 2: Puzzle Pieces
You have 15 puzzle pieces. You've used 8 pieces so far. How many pieces are left?
15 - 8 = ?
Can you guess the related facts?
Parent Tips 🌟
- Fact Family Houses: Draw houses with a roof number (like 10) and write all related facts inside. This visual helps kids see the connections.
- Everyday Subtraction: Point out real-life examples ("We had 6 bananas, we ate 2, now we have 4. What's another way to say this?").
- Flashcard Games: Make flashcards with related facts and play matching games to pair them up.