Subjects/Foundational Numeracy/Counting Backward from 20
Foundational NumeracyCounting & Number Sense

Counting Backward from 20

Learn to count backward from 20 to 0.

10 min

🎯 What You'll Learn

You will learn to count backward from 20. Counting backward is important for subtraction and making change at the market.

🏪 Market Story

Chidi is playing a counting game with his friends in the street. They take turns counting backward from 20 before they start their race. "20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, GO!" Whoever finishes counting first without mistakes wins.

📝 Let's Learn

Counting backward means saying numbers in reverse order, going from a bigger number to a smaller number. It is like counting forward but in the opposite direction.

From 20: 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0

Example 1: Count backward from 10: 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0.

Example 2: Funke has 15 sweets. She eats one each day. She counts backward to see how many she has left each day: 15, 14, 13, 12, 11...

Example 3: Start at 18 and count back 5: 17, 16, 15, 14, 13. You land on 13.

Why it matters: When a trader gives you change, they often count backward from the amount you paid!

✏️ Practice Questions

  1. Count backward from 12 to 7. What numbers do you say?
  2. Start at 20 and count back 6. What number do you land on?
  3. Tunde has 16 biscuits and gives away 4. Count backward to find how many are left.
Click to see answers
  1. You say: 12, 11, 10, 9, 8, 7.
  2. You land on 14. Count: 19, 18, 17, 16, 15, 14.
  3. Tunde has 12 biscuits left. Count back from 16: 15, 14, 13, 12.

💡 Remember

Counting backward is like counting forward in reverse. Practice every day, and it will help you subtract numbers and make change at the market!