Mastering 3-Digit by 2-Digit Multiplication Techniques

In this video, Mr. J explains how to multiply three-digit numbers by two-digit numbers using two examples: 239 x 54 and 628 x 73. He demonstrates the importance of lining up numbers correctly and breaking down the multiplication process into manageable steps. The video covers calculating partial products and adding them to find the final product. Mr. J provides clear instructions and tips to help viewers understand the multiplication process.

What does the term 'product' refer to in multiplication?

• The quotient of two numbers

• The answer to a multiplication problem

• The difference between two numbers

• The sum of two numbers

Tags

CCSS.3.OA.A.1

Why is it important to align the digits properly when setting up a multiplication problem?

• To simplify the multiplication process

• To avoid carrying numbers

• To make the problem look neat

• To ensure correct addition of partial products

Tags

CCSS.4.NBT.B.5

What is the first step in multiplying 239 by 54?

• Multiply 239 by 50

• Subtract 54 from 239

• Add 239 and 54

• Multiply 239 by 4

Tags

CCSS.4.NBT.B.5

What is the value of 4 times 239 in the example?

• 1076

• 1195

• 860

• 956

Tags

CCSS.4.NBT.B.5

How do we represent the value of 50 when multiplying it by 239?

• By adding a zero at the end

• By carrying over the 5

• By multiplying by 5 first

• By writing 50 below 239

Tags

CCSS.4.NBT.B.5

What is the final product of 239 times 54?

• 12,906

• 13,006

• 12,796

• 12,816

Tags

CCSS.5.NBT.B.5

What is the first step in multiplying 628 by 73?

• Subtract 73 from 628

• Add 628 and 73

• Multiply 628 by 70

• Multiply 628 by 3

Tags

CCSS.5.NBT.B.5

What is the value of 7 times 628 in the example?

• 4,584

• 4,856

• 4,196

• 4,396

Tags

CCSS.4.NBT.B.5

How do we adjust the multiplication when moving from the ones to the tens place?

• By multiplying by 10

• By subtracting 10

• By carrying over the number

• By adding a zero at the end

Tags

CCSS.4.NBT.B.5

What is the final product of 628 times 73?

• 45,924

• 45,844

• 45,764

• 46,004

Tags

CCSS.5.NBT.B.5