The EASIEST way to teach Multiplication for 9s facts

Teaching multiplication can be a fun and engaging experience, especially when it comes to the 9’s facts. These facts have unique tricks that make them easier to learn and remember. Below, I explore the easiest way to teach multiplication for 9s, focusing on consistency, finger tricks, and a simple “one down, then add to 9” method.

Consistency: The Key to Mastering Math Facts

Just like any other multiplication facts, consistency is crucial when teaching the 9s. Repetition and practice help students internalize patterns and build confidence. Encourage daily practice with fun activities, such as flashcards, games, or quizzes and sprints. When students see consistent patterns in the 9s table, they’ll start recognizing the logic behind it.

For example:

• 9 x 1 = 9

• 9 x 2 = 18

• 9 x 3 = 27

Notice how the digits of each product sum up to 9? This pattern is key to understanding the tricks we’ll dive into next.

The Nines Finger Trick

One of the most exciting ways to teach multiplication for 9s is using the finger trick. Here’s how it works:

1. Hold up all ten fingers

2. To solve 9 x ?, fold down the finger corresponding to ?. 

3. Count the fingers on the left side of the folder finger - this is your tens digit. 

4. Count the fingers on the right side of the folded finger - this is your ones digit.

For example:

• To calculate 9 x 4

  • Fold down your fourth finger

  • You have three fingers on the left (tens digit = 3) and six fingers on the right (ones digit = 6).

  • The answer is 36.

This trick is visual, interactive, and perfect for your tactile learners!

“One Down, Then Add to Make 9” Method

Another easy method for teaching multiplication by 9 is using a simple subtraction and addition trick. Here’s how it works:

1. Take the number you’re multiplying by (let’s call it ?).

2. Subtract one from ? - this gives you the tens digit.

3. Add that result to make 9 - this gives you the ones digit.

Let’s break it down with an example:

• For 9 x 7:

  • Subtract one from 7: 7 - 1 = 6 (tens digit)

  • Add 6 + 3 = 9 (ones digit)

  • Combine the tens and ones: 63

This method reinforces subtraction and addition skills, while making multiplication feel less intimidating.

Why These Tricks Work

Both methods rely on patterns unique to multiplying by nine:

• Products of nine always have digits that sum up to nine.

• The tens digit increases by one as you move up the table (0, 1, 2), while the ones digit decreases (9, 8, 7).

These consistent patterns make learning multiplication for nine’s facts logical and predictable.

Tips for Making it Stick

To ensure students retain these tricks:

• Use anchor charts: Create colorful charts illustrating both methods and display them in your classroom or share them digitally.

• Incorporate hands-on activities: Practice using fingers or write out examples using the “one down, then add to 9” method.

• Encourage peer teaching: Research shows that students often learn best when they are able to teach a concept to others.

• Celebrate progress: Recognize milestones to keep your students motivated! Try creating a “Fact Club” where students reach different levels for each fact family they master.

By combining consistency with interactive tricks like finger counting and subtraction-addition methods, teaching multiplication for nine’s facts becomes simple and enjoyable. These strategies not only help students master math but also build confidence in their problem-solving abilities.