- understand what multiplication is &
- explain to your classmates what procedures to follow when multiplying mixed numbers.
Average online time: 20 min
Average offline time: 10 min
1- Getting Started
Write down in the following shoutbox what you know about fractions. After writing your message, click the send button
2- Understanding what Multiplication Entails
Keep in mind the following facts:
1) Multiplying can be seen as taken a number "x" times, so for instance 3 x 4 means that you take the number "3" four times. In other words, you add 3 + 3 + 3 + 3
2) The result of a multiplication is called the product and the numbers being multiplied are called factors. For instance, in the mathematical sentence 3 x 4 = 12,
3 and 4 are the factors & 12 is the product
3) When two numbers are multiplied together, the product is the same regardless of the order of the factors.
7/3 x 4/5 = 4/5 x 7/3
4) The product of any number and 1 is that number.
1/3 x 1 = 1/3
3- Multiplying Mixed Numbers
Method 1
As you watch the following video, write down the steps the teacher uses to multiply two mixed numbers
Method 2
As you watch the following video keep in mind that a mixed number can be written as a whole number plus a fraction. For instance
In addition, when you multiply mixed numbers you can use what is called the distributive property.
Ready to watch the second video?
Keep in mind the following facts:
1) Multiplying can be seen as taken a number "x" times, so for instance 3 x 4 means that you take the number "3" four times. In other words, you add 3 + 3 + 3 + 3
2) The result of a multiplication is called the product and the numbers being multiplied are called factors. For instance, in the mathematical sentence 3 x 4 = 12,
3 and 4 are the factors & 12 is the product
3) When two numbers are multiplied together, the product is the same regardless of the order of the factors.
7/3 x 4/5 = 4/5 x 7/3
4) The product of any number and 1 is that number.
1/3 x 1 = 1/3
3- Multiplying Mixed Numbers
Method 1
As you watch the following video, write down the steps the teacher uses to multiply two mixed numbers
Method 2
As you watch the following video keep in mind that a mixed number can be written as a whole number plus a fraction. For instance
In addition, when you multiply mixed numbers you can use what is called the distributive property.
4- Checking Understanding
What would be the answer of the following multiplication.
5- Assessing Understanding:
Write down your answer and explain how you got it.
