Mastering Multiplication of 3-Digit and 4-Digit Numbers

The video tutorial covers multiplying three and four-digit numbers using regrouping. It begins with an introduction to the lesson, followed by a practical example of multiplying 567 by 3. The tutorial then shifts to estimating and calculating the costs of vacation packages, comparing different options. The video concludes with a detailed explanation of regrouping and practice problems to reinforce the concept.

What is the first step in multiplying three-digit numbers?

• Estimate the result

• Multiply the hundreds

• Multiply the ones

• Multiply the tens

What is the result of multiplying 3 by 567?

• 1501 million gallons

• 1801 million gallons

• 1601 million gallons

• 1701 million gallons

Why is estimation important in multiplication?

• To find the exact answer

• To ensure the answer is close to the actual value

• To make multiplication easier

• To check the work

What is the estimated cost for Jake's family for package C?

• $2400

• $2000

• $2600

• $2200

What is the estimated cost for two adults and two children in package C?

• $1400 for adults and $1000 for children

• $1500 for adults and $900 for children

• $1300 for adults and $1100 for children

• $1200 for adults and $1000 for children

How much more does package A cost compared to package C?

• $1470

• $1670

• $1570

• $1370

How do you calculate the exact cost for adults in package A?

• Multiply and then add

• Estimate and round up

• Estimate and round down

• Multiply and regroup

What is the total cost for package A?

• $3636

• $3836

• $3936

• $3736

What is the purpose of regrouping in multiplication?

• To organize the calculation

• To carry over values to the next place value

• To make numbers smaller

• To simplify the process

What does regrouping help with in multiplication?

• Reducing the number of steps

• Handling larger numbers

• Avoiding estimation

• Managing carry-over values