Long division and multiplication

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What is long division?

Back

Long division is a method for dividing large numbers by breaking the division process into a series of easier steps.

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CCSS.5.NBT.B.6

CCSS.6.NS.B.2

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What is multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number a specified number of times.

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CCSS.3.OA.A.1

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What is the product of 323 and 3?

Back

The product of 323 and 3 is 969.

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CCSS.4.NBT.B.5

Front

What is the square of 15?

Back

The square of 15 is 225.

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CCSS.6.EE.A.1

Front

How do you multiply two two-digit numbers, such as 56 and 89?

Back

To multiply two two-digit numbers, you can use the standard algorithm, which involves multiplying each digit of one number by each digit of the other and then adding the results.

Tags

CCSS.4.NBT.B.5

Front

What is the result of multiplying 19 by 15?

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The result of multiplying 19 by 15 is 285.

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CCSS.4.NBT.B.5

Front

How do you perform division with a two-digit divisor, such as 648 divided by 8?

Back

To perform division with a two-digit divisor, you can use long division, which involves dividing, multiplying, and subtracting in a systematic way.

Tags

CCSS.5.NBT.B.6

CCSS.6.NS.B.2

Front

What is the quotient of 648 divided by 8?

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The quotient of 648 divided by 8 is 81.

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CCSS.4.NBT.B.6

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What is the relationship between multiplication and division?

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Multiplication and division are inverse operations; multiplying two numbers gives a product, while dividing a product by one of the numbers gives the other number.

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CCSS.4.NBT.B.6

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What is the importance of estimating products and quotients?

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Estimating products and quotients helps to check the reasonableness of answers and can simplify calculations.