Double Digit Multiplication

Front

What is double digit multiplication?

Back

Double digit multiplication refers to the process of multiplying two numbers, each consisting of two digits. It involves techniques such as the standard algorithm, area model, or lattice method.

Tags

CCSS.4.NBT.B.5

Front

What is the standard algorithm for double digit multiplication?

Back

The standard algorithm involves multiplying the digits of the numbers in a specific order, starting from the rightmost digit, and then adding the partial products.

Tags

CCSS.4.NBT.B.5

Front

How do you multiply 60 by 47 using the standard algorithm?

Back

First, multiply 60 by 7 (which equals 420), then multiply 60 by 40 (which equals 2400). Finally, add the two products: 420 + 2400 = 2820.

Tags

CCSS.5.NBT.B.5

Front

What is the product of 98 and 92?

Back

The product of 98 and 92 is 9016.

Tags

CCSS.4.NBT.B.5

Front

How do you check if a multiplication answer is correct?

Back

You can check if a multiplication answer is correct by performing the multiplication again or by using the inverse operation (division) to see if the original numbers can be retrieved.

Tags

CCSS.4.NBT.B.6

Front

What is the product of 41 and 13?

Back

The product of 41 and 13 is 533.

Tags

CCSS.4.NBT.B.5

Front

What is the product of 76 and 69?

Back

The product of 76 and 69 is 5244.

Tags

CCSS.4.NBT.B.5

Front

What is the correct product of 28 and 12?

Back

The correct product of 28 and 12 is 336, not 363.

Tags

CCSS.4.NBT.B.5

Front

What is the area model for double digit multiplication?

Back

The area model involves breaking each number into tens and ones, creating a rectangle for each part, and then finding the area of each rectangle to get the final product.

Tags

CCSS.4.NBT.B.5

Front

What is the lattice method in multiplication?

Back

The lattice method is a visual multiplication technique that uses a grid to organize the multiplication of digits, allowing for easier addition of partial products.

Tags

CCSS.4.NBT.B.5