Exploring 2-Digit by 1-Digit Area Model Multiplication

What is the first step in using an area model for multiplication?

• Draw a single large box

• Write the multiplication fact

• Divide the number into tens and ones

• Place the multiplier outside the box

Tags

CCSS.4.NBT.B.5

How do you multiply 20 by 6 using the area model?

• Multiply 2 by 6 and add two zeros

• Divide 20 by 6 first

• Directly multiply 20 by 6

• Multiply 2 by 6 and add one zero

Tags

CCSS.4.NBT.B.5

What is the result of multiplying 30 by 6 in the area model?

• 180

• 36

• 306

• 300

Tags

CCSS.4.NBT.B.5

How is the number 34 split for multiplication in the area model?

• 3 and 40

• 3 tens and 4 ones

• 30 and 4

• 34 and 0

Tags

CCSS.4.NBT.B.5

What is the final step after multiplying each part in the area model?

• Subtract the two parts

• Multiply the results

• Divide the two parts

• Add the two parts together

Tags

CCSS.4.NBT.B.5

What does 53 times 7 equal when using the area model?

• 370

• 375

• 371

• 360

Tags

CCSS.4.NBT.B.5

How do you handle the zero when multiplying 50 by 7 in the area model?

• Subtract the zero before multiplying

• Multiply 50 by 7 directly

• Multiply 5 by 7 and then add the zero

• Ignore the zero during multiplication

Tags

CCSS.4.NBT.B.5

What is the product of 40 times 8 using the area model?

• 320

• 408

• 400

• 328

Tags

CCSS.4.NBT.B.5

What is the value of 2 times 8 in the context of the area model?

• 24

• 18

• 16

• 10

Tags

CCSS.4.NBT.B.5

What is the final answer for 42 times 8 using the area model?

• 336

• 340

• 328

• 350

Tags

CCSS.4.NBT.B.5