Mastering 2-Digit Multiplication with the AREA Model

The video tutorial introduces the area model for multiplication, starting with one-digit numbers and expanding to two-digit and three by two-digit problems. The instructor provides step-by-step examples, demonstrating how to break down numbers into expanded form and use the area model to solve complex multiplication problems. The video emphasizes checking work through estimation and highlights the strategy's effectiveness for understanding multiplication.

What is the formula for calculating the area of a rectangle?

• Area = length - width

• Area = length + width

• Area = length * width

• Area = length / width

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CCSS.3.MD.C.7B

CCSS.4.MD.A.3

When multiplying 345 by 9 using the area model, what is the expanded form of 345?

• 300 + 40 + 5

• 300 + 45

• 3 + 4 + 5

• 30 + 45

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CCSS.4.NBT.B.5

In the area model, what is the result of multiplying 9 by 40?

• 360

• 400

• 90

• 36

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CCSS.4.NBT.B.5

What is the sum of 1200 and 360 in the area model example?

• 1600

• 1560

• 1460

• 1500

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CCSS.2.NBT.B.7

What is the final answer for the multiplication of 45 and 39 using the area model?

• 1955

• 1655

• 1855

• 1755

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CCSS.4.NBT.B.5

What is the expanded form of 69 in the second example?

• 60 + 9

• 6 + 9

• 6 + 90

• 60 + 90

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CCSS.1.NBT.A.1

In the second example, what is the result of multiplying 20 by 9?

• 180

• 200

• 90

• 18

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CCSS.3.NBT.A.3

What is the final answer for the multiplication of 69 and 28 using the area model?

• 1932

• 1832

• 1732

• 2032

Tags

CCSS.4.NBT.B.5

How many pieces are there in a three-digit by two-digit multiplication problem using the area model?

• 10

• 6

• 8

• 4

Tags

CCSS.4.NBT.B.5

What is the final answer for the multiplication of 392 and 64 using the area model?

• 27088

• 24088

• 26088

• 25088

Tags

CCSS.4.NBT.B.5