Meet the Math Facts Multiplication & Division – 8 x 9 = 72

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In this lesson, students learn that multiplication is a method of adding the same number repeatedly, exemplified by the fact that 8 times 9 equals 72. By counting by nines, learners can visualize this multiplication fact, and practicing saying it out loud helps reinforce their memory. The lesson emphasizes that multiplication serves as a shortcut for addition, making it a valuable tool in mathematics.
  1. What does it mean when we say 8 times 9 equals 72?
  2. How can counting by nines help us understand multiplication better?
  3. Why is multiplication a faster way to add the same number many times?

Meet the Math Facts: Multiplication & Division – 8 x 9 = 72

Introduction to Multiplication

Multiplication is a way to add the same number many times. It’s like counting groups of things. For example, if you have 8 groups of 9 apples, you can use multiplication to find out how many apples there are in total.

Understanding 8 x 9

Let’s learn about the multiplication fact: 8 times 9 equals 72. This means if you have 8 groups and each group has 9 things, you will have 72 things altogether.

Counting by Nines

One way to understand this is by counting by nines. Let’s try it:

  • 9
  • 18
  • 27
  • 36
  • 45
  • 54
  • 63
  • 72

When you count by nines eight times, you reach 72!

Practice Makes Perfect

To remember that 8 times 9 equals 72, you can practice saying it out loud: “Eight times nine equals seventy-two.” The more you practice, the easier it will be to remember.

Fun Fact

Did you know that multiplication is like a shortcut for addition? Instead of adding 9 eight times (9 + 9 + 9 + 9 + 9 + 9 + 9 + 9), you can just multiply 8 by 9 to get 72!

Conclusion

Now you know that 8 times 9 equals 72. Keep practicing your multiplication facts, and soon you’ll be a math whiz!

  • Can you think of something you have at home that comes in groups, like toys or snacks? How would you use multiplication to find out how many you have in total?
  • Imagine you are organizing a party and you want to give 9 candies to each of your 8 friends. How many candies do you need in total? Can you explain how you figured it out?
  • Have you ever noticed patterns when counting by numbers, like counting by nines? What other numbers can you count by, and what patterns do you see?
  1. Apple Grouping Activity: Gather 72 small objects like buttons, beads, or paper clips. Divide them into 8 groups. Ask yourself, “How many objects are in each group?” Count to confirm there are 9 objects in each group. This hands-on activity helps you see how multiplication works in real life.

  2. Skip Counting Hopscotch: Create a hopscotch grid with numbers counting by nines (9, 18, 27, etc., up to 72) using chalk outside or tape indoors. Hop on each number while saying it out loud. This will help you practice counting by nines and reinforce the concept of multiplication.

  3. Multiplication Story Time: Create a short story or draw a picture about 8 friends each having 9 balloons. How many balloons are there in total? Share your story or drawing with a family member or friend and explain how you used multiplication to find the answer.

Here’s a sanitized version of the provided YouTube transcript:

[Music]
Eight times nine equals seventy-two.
Eight times nine equals seventy-two.
[Music]
Eight times nine equals seventy-two.
[Music]
Hmm… eight times nine equals seventy-two.
Oh! Eight times nine equals seventy-two.
[Music]
Eight times nine equals seventy-two.
Eight times nine equals seventy-two.
Eight nines equals seventy-two.
One, two, three, four, five, six, seven, eight.
Nines equals seventy-two.
Eight times nine equals seventy-two.
[Music]
Nine, eighteen, twenty-seven, thirty-six,
forty-five, fifty-four, sixty-three,
seventy-two equals seventy-two.
Seventy-two equals seventy-two.
Eight times nine equals seventy-two.
[Music]

This version removes repetitive phrases and maintains clarity while keeping the essential content intact.

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