Exploring 2-Digit by 2-Digit Multiplication with Area Model

What does decomposing a number mean?

• Multiplying numbers

• Adding numbers

• Combining numbers

• Breaking down numbers

How is the number 26 decomposed in the example?

• 26 and 0

• 20 and 3

• 20 and 6

• 2 and 6

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

What are the decomposed parts of the number 43?

• 30 and 4

• 4 and 3

• 43 and 0

• 40 and 3

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

What is the product of 40 times 20?

• 400

• 600

• 1000

• 800

Tags

CCSS.4.NBT.B.5

How do you calculate 40 times 6?

• 40 times 6 directly

• 4 times 6 and add one zero

• 40 plus 6

• 4 times 6 and add two zeros

Tags

CCSS.3.NBT.A.3

What is the result of 3 times 20?

• 50

• 40

• 60

• 30

Tags

CCSS.3.NBT.A.3

What is the final step after calculating all partial products?

• Subtracting them

• Multiplying them

• Adding them

• Dividing them

Tags

CCSS.4.NBT.B.5

What is the final answer for the multiplication of 26 and 43?

• 1318

• 1018

• 1118

• 1218

Tags

CCSS.4.NBT.B.5

How is the number 36 decomposed in the new problem?

• 36 and 0

• 3 and 6

• 30 and 60

• 30 and 6

Tags

CCSS.2.OA.A.1

What are the decomposed parts of the number 76?

• 7 and 6

• 70 and 6

• 76 and 0

• 70 and 60

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C