Mastering 3-Digit by 2-Digit Multiplication

This video tutorial covers the concept of multiplying a three-digit number by a two-digit number, specifically using the example of 347 times 65. It demonstrates two methods: the partial products method and the standard algorithm. The tutorial provides a step-by-step breakdown of each method, showing how to handle each digit and carry over numbers. The video concludes by encouraging viewers to practice with a similar problem and check their work.

What is the first step in breaking down the multiplication problem?

• Start with the ones place

• Add the numbers together

• Divide the numbers

• Multiply the tens place first

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CCSS.4.NBT.B.5

How many partial products are created when breaking down the problem?

• Seven

• Five

• Four

• Six

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CCSS.4.NBT.B.5

What is the result of multiplying 347 by 5 in the problem?

• 1735

• 1875

• 2045

• 1525

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CCSS.4.NBT.B.5

What is the result of 6 times 7 in the second part of the multiplication?

• 42

• 48

• 54

• 60

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CCSS.3.OA.A.1

In the standard algorithm, what do you do with the number in the tens place when multiplying?

• Subtract it from the result

• Multiply it by 10

• Ignore it

• Carry it over to the next digit

Tags

CCSS.4.NBT.B.5

How many zeros do you add when multiplying by the tens place in the second part of the problem?

• Three

• Two

• One

• None

Tags

CCSS.4.NBT.B.5

What is the final step in the standard algorithm before adding the results?

• Multiply the hundreds place

• Add a zero to the tens place

• Carry over the last digit

• Write down the carried over numbers

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CCSS.5.NBT.B.5

What is the total product of 347 times 65?

• 22555

• 25675

• 23475

• 24565

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CCSS.5.NBT.B.5

What is the purpose of carrying over numbers in the standard algorithm?

• To reduce the number of steps

• To make the problem harder

• To ensure accuracy

• To simplify the problem

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

What does the narrator suggest doing after explaining the problem?

• Moving on to a different topic

• Watching the video again

• Trying a similar problem on your own

• Taking a break

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CCSS.RI.6.3

CCSS.RI.7.3

CCSS.RI.8.5

CCSS.RI.9-10.3

CCSS.RI.9-10.5