K-5 friendly lesson
One small step at a time.Read the idea, try the activity, and celebrate each win as you go.
Fact Families - Up to 10
🏠 Addition and subtraction live in the same family. If you know one fact, you can find the others!
Do this: Read the concept below, then try the quiz or activity.
Lesson 19 of 180
Concept
A fact family uses 3 numbers: Example numbers: 2, 3, 5
Family facts: • 2 + 3 = 5 • 3 + 2 = 5 • 5 - 2 = 3 • 5 - 3 = 2
🎯 Key idea: Addition puts parts together. Subtraction takes a part from the whole.
Try it
Write the fact family for each set: 1. 1, 4, 5 2. 3, 6, 9 3. 2, 7, 9
🧩 Fill in: 4. 4 + __ = 10 5. 10 - 4 = __