Double-Digit Multiplication

Front

What is double-digit multiplication?

Back

Double-digit multiplication is the process of multiplying two numbers that each have two digits, such as 15 and 24.

Tags

CCSS.4.NBT.B.5

Front

What is the box method in multiplication?

Back

The box method is a visual way to multiply numbers by breaking them into parts, creating a box or grid to organize the multiplication.

Tags

CCSS.4.NBT.B.5

Front

How do you break down 15 into tens and ones for multiplication?

Back

15 can be broken down into 10 (tens) and 5 (ones).

Tags

CCSS.4.NBT.B.5

Front

How do you break down 24 into tens and ones for multiplication?

Back

24 can be broken down into 20 (tens) and 4 (ones).

Tags

CCSS.4.NBT.B.5

Front

What is the first step in using the box method for 15 x 24?

Back

The first step is to create a box and label the rows with 10 and 5 (for 15) and the columns with 20 and 4 (for 24).

Tags

CCSS.4.NBT.B.5

Front

What is the product of 10 and 20?

Back

The product of 10 and 20 is 200.

Tags

CCSS.3.NBT.A.3

Front

What is the product of 10 and 4?

Back

The product of 10 and 4 is 40.

Tags

CCSS.3.OA.A.1

Front

What is the product of 5 and 20?

Back

The product of 5 and 20 is 100.

Tags

CCSS.4.NBT.B.5

Front

What is the product of 5 and 4?

Back

The product of 5 and 4 is 20.

Tags

CCSS.3.OA.C.7

Front

How do you find the total from the box method?

Back

Add all the products from the box together: 200 + 40 + 100 + 20 = 360.

Tags

CCSS.4.NBT.B.5