Multiples of Nine

Lesson Plan - Get It!

Audio:

You are just two lessons away from having all your multiplication facts mastered!

So far, you have learned to multiply by two, three, four, five, six, seven, eight, ten, and eleven.

Review what you have learned and get your brain in math mode.

As always, if there is a set of multiplication facts that you still find challenging, review those facts before moving on. Select the Related Lesson that you need to review from the right-hand sidebar.

After memorizing all these multiplication facts, continue with this lesson to learn the nine-times tables.

You can use a few fun tips and tricks to remember the multiples of nine. Start by looking at the nine times-tables on a multiplication table.

• What do you observe when you look at the nine row and column?

The nine-times tables display a unique pattern. If you do not see it in the multiplication table, look back at the question from the beginning of the lesson.

You should notice that from one to ten, the ones place (the number to the right) is constantly decreasing by one, while the tens place (the number to the left of the ones place) is constantly increasing by one.

There is also a fun trick you can do with your hands to help you learn the nine times tables. (To see this method illustrated, go to the Elephango lesson found under Additional Resources in the right-hand sidebar.)

Hold both hands before you, palms facing up. Each of your fingers represents a number from one to ten. Your thumb on your left hand is one, and your thumb on your right hand is ten.

Say you wanted to find the answer to 9 x 3.

With your fingers, count to three. When you reach the third finger (left middle finger), put that finger down.

• How many fingers are there to the left of the finger that is down?

This digit goes in the tens place of the product.

• How many fingers are there to the right of the finger that is down?

This digit goes in the ones place of the product.

• Did you get 27 for your answer?

Try this technique to find the products for the following problems.

Add these tips and tricks to your foldable. You can write the information under the 9 flap.

Next, listen to a nines-times tables song in the video below.

After you have listened to the song and begin to have an understanding of multiples of nine, move to the Got It? section.