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What is double digit multiplication?

Back

Double digit multiplication is the process of multiplying two numbers that each have two digits, such as 23 x 45.

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CCSS.4.NBT.B.5

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What is the product of 99 and 50?

Back

4950

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CCSS.4.NBT.B.5

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What is the product of 60 and 10?

Back

600

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CCSS.4.NBT.B.5

Front

What is the product of 90 and 90?

Back

8100

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CCSS.4.NBT.B.5

Front

What is the product of 30 and 35?

Back

1050

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CCSS.4.NBT.B.5

Front

What is the product of 80 and 80?

Back

6400

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CCSS.4.NBT.B.5

Front

How do you multiply two double-digit numbers?

Back

To multiply two double-digit numbers, you can use the area model, lattice method, or traditional algorithm.

Tags

CCSS.4.NBT.B.5

Front

What is the area model in multiplication?

Back

The area model involves breaking numbers into tens and ones, creating a rectangle, and finding the area of each part.

Tags

CCSS.4.NBT.B.5

Front

What is the traditional algorithm for multiplication?

Back

The traditional algorithm involves writing the numbers one above the other, multiplying each digit, and adding the results.

Tags

CCSS.4.NBT.B.5

Front

What is a common mistake in double digit multiplication?

Back

A common mistake is forgetting to carry over numbers when the product of digits exceeds 9.

Tags

CCSS.4.NBT.B.5