Mastering Multiplication Facts with 6 Key Rules

This video introduces a method to simplify learning multiplication tables from 144 to 24 facts using six rules. Each rule focuses on a specific number, such as multiplying by 1, 10, 11, 2, 5, and 9, with techniques like skip counting and number reduction. The method aims to make learning multiplication efficient and easy, with daily practice recommended for mastery.

How many multiplication facts can be simplified using six rules?

• 24 facts

• 144 facts

• 103 facts

• 67 facts

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CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

What is the result of any number multiplied by 1?

• 0

• The same number

• 1

• 10

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CCSS.5.NBT.B.7

What happens when you multiply a number by 10?

• The number becomes 10

• Add a zero to the number

• The number doubles

• The number decreases by 10

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CCSS.3.OA.D.9

How does multiplying by 11 affect single-digit numbers?

• Adds 11 to the number

• The digit duplicates itself

• The number stays the same

• The number triples

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CCSS.3.OA.D.9

What is the result of 3 times 11?

• 33

• 11

• 13

• 31

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CCSS.3.NBT.A.3

What is a simple method for multiplying by 2?

• Subtract 2 from the number

• Double the number

• Add 2 to the number

• Divide the number by 2

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CCSS.3.OA.D.9

How can you easily multiply a number by 5?

• Skip count by 5

• Square the number

• Multiply the number by 10 and halve it

• Add 5 to the number

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CCSS.3.OA.A.1

What is the trick for multiplying a number by 9?

• Add 9 to the number

• Subtract 1 from the number and find the complement to 9

• Double the number and subtract 9

• Divide the number by 9

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CCSS.3.OA.D.9

After applying the six rules, how many multiplication facts remain?

• 67 facts

• 41 facts

• 24 facts

• 52 facts

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CCSS.3.OA.B.5

What is the result of 2 times 9 using the rule of 9?

• 29

• 27

• 18

• 81

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CCSS.3.OA.D.9