Exploring the Commutative Property of Multiplication

Professor Von Schmohawk introduces the concept of multiplication on the island of Cocoloco, where inhabitants initially relied on addition and subtraction for calculations. The video explains how multiplication simplifies repeated addition, using examples like coconut donations and tiling a hut. The commutative property of multiplication is introduced, demonstrating that the order of factors does not affect the product. The video also covers multiplying multiple operands and concludes with a preview of future algebraic topics.

What mathematical operations did the people of Cocoloco initially discover?

• Subtraction and division

• Multiplication and division

• Addition and subtraction

• Addition and multiplication

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CCSS.7.NS.A.3

How many coconuts does each inhabitant of Cocoloco donate for the annual feast of Mombozo?

• Five

• Four

• Two

• Three

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CCSS.3.OA.A.3

What is multiplication described as in the video?

• A way to divide numbers

• A method to simplify repeated addition

• A technique to subtract numbers

• A way to add numbers

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CCSS.3.OA.A.1

How many tiles did the king of Cocoloco need to tile his hut floor?

• Fifty

• Seventy

• Eighty

• Sixty

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CCSS.2.OA.A.1

What is the Commutative Property of Multiplication?

• A times B equals B times A

• A plus B equals B plus A

• A divided by B equals B divided by A

• A minus B equals B minus A

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CCSS.3.OA.B.5

What symbol is often used in Algebra to represent multiplication?

• Dot (·)

• Asterisk (*)

• Plus (+)

• Slash (/)

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CCSS.7.NS.A.3

What are the numbers called that are multiplied together in a multiplication operation?

• Operands

• Factors

• Products

• Variables

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CCSS.5.NBT.A.2

How can multiple operands be multiplied sequentially?

• By subtracting them one at a time

• By adding them one at a time

• By multiplying pairs of operands one at a time

• By dividing them one at a time

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CCSS.5.NBT.B.7

How many ways can you stack 24 boxes according to the video?

• One way

• Two ways

• Three ways

• Four ways

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CCSS.4.NBT.B.6

What is the importance of the commutative property in algebra?

• It is used for solving equations

• It simplifies subtraction

• It helps in dividing numbers

• It allows us to rearrange groups of numbers which are added or multiplied

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CCSS.7.NS.A.2C