Double Digit Multiplication with the Area Model

This video tutorial demonstrates how to solve two-digit by two-digit multiplication problems using the area model. The teacher explains how to break down numbers into expanded form and calculate partial products. The tutorial emphasizes the importance of careful alignment and addition of partial products to avoid mistakes. The example problem 73 * 31 is used to illustrate the process, resulting in a final answer of 2,263.

What is the main purpose of this lesson?

• To learn addition of two-digit numbers

• To understand two-digit by two-digit multiplication using different models

• To study for a history test

• To practice division problems

Tags

CCSS.4.NBT.B.5

What problem is being used for practice in this lesson?

• 89 * 12

• 56 * 78

• 45 * 23

• 73 * 31

Tags

CCSS.5.NBT.B.5

What is the first step in creating an area model?

• Drawing a circle

• Writing the problem

• Drawing a rectangle

• Breaking the numbers into expanded form

Tags

CCSS.4.NBT.B.5

How is the number 73 broken down in expanded form?

• 60 + 13

• 80 - 7

• 70 + 3

• 50 + 23

Tags

CCSS.2.NBT.A.3

What does the area model represent in this lesson?

• The length of a line

• The area of a room

• The perimeter of a rectangle

• The volume of a box

Tags

CCSS.4.NBT.B.5

What is the partial product of 70 * 30?

• 3000

• 700

• 2100

• 210

Tags

CCSS.5.NBT.B.5

What multiplication pattern is used to solve 3 * 3?

• 15

• 9

• 6

• 12

Tags

CCSS.3.OA.A.1

What is the result of 70 * 1?

• 1

• 71

• 700

• 70

Tags

CCSS.3.NBT.A.3

Why is it important to align numbers correctly when adding partial products?

• To make the problem look neat

• To ensure the correct final answer

• To save time

• To practice writing skills

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

What is the final answer for the multiplication problem 73 * 31?

• 2260

• 2363

• 2236

• 2263

Tags

CCSS.4.NBT.B.5