4 Digit by 1 Digit Multiplication

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What is multiplication?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times. For example, 4 x 3 means adding 4 three times (4 + 4 + 4).

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CCSS.3.OA.A.1

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What does a 4-digit number mean?

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A 4-digit number is a number that has four digits, ranging from 1,000 to 9,999.

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CCSS.4.NBT.A.2

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What is a 1-digit number?

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A 1-digit number is a number that has only one digit, ranging from 0 to 9.

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CCSS.1.NBT.A.1

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How do you multiply a 4-digit number by a 1-digit number?

Back

To multiply a 4-digit number by a 1-digit number, you can use the standard algorithm, multiplying each digit of the 4-digit number by the 1-digit number and adding the results.

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CCSS.4.NBT.B.5

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What is the product of 4,123 and 6?

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24,738

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CCSS.4.NBT.B.5

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What is the product of 9,930 and 8?

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79,440

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CCSS.5.NBT.B.5

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What is the product of 7,613 and 7?

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53,291

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CCSS.4.NBT.B.5

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If John is 9 years old, how many days old is he? (Use 365 days in a year)

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3,285 days

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CCSS.6.RP.A.3D

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How many eggs does Morgan get in a week if he has a dozen eggs each day?

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84 eggs

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CCSS.3.OA.A.3

Front

What is the standard algorithm for multiplication?

Back

The standard algorithm involves multiplying each digit of the top number by each digit of the bottom number, starting from the rightmost digit, and then adding the results.

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CCSS.4.NBT.B.5