K-5 friendly lesson
One small step at a time.Read the idea, try the activity, and celebrate each win as you go.
Subtract by Counting Back - Up to 10
⬅️ Subtraction means going backward. Count back from the starting number to find how many are left.
Do this: Read the concept below, then try the quiz or activity.
Lesson 18 of 180
Concept
When subtracting, think "go back."
Example: 9 - 3 • Start at 9 • Count back: 8, 7, 6 • Answer: 6
🎯 Counting Back Rule: The second number tells how many backward steps to take.
Try it
Practice counting back: 1. 8 - 2 = ? 2. 7 - 5 = ? 3. 10 - 4 = ? 4. 6 - 1 = ? 5. 9 - 0 = ?