Mastering Multiplication of Two-Digit and One-Digit Numbers

The video tutorial introduces fourth-grade students to multiplication of two-digit numbers by one-digit numbers. It begins with an introduction and learning objectives, followed by an explanation of key vocabulary such as 'product' and 'partial products'. The teacher sets up a multiplication problem involving balloons and demonstrates two methods to solve it: the area model and the standard algorithm. Students are then given practice problems to apply what they've learned.

What is the answer to a multiplication problem called?

• Product

• Quotient

• Difference

• Sum

How many packages of balloons is Harry buying?

• 10

• 8

• 12

• 5

What is the first step in solving 25 times 8 using partial products?

• Split the numbers by place value

• Multiply the digits

• Add the numbers

• Subtract the numbers

What is the product of 20 times 8?

• 220

• 200

• 180

• 160

What do you do with partial products to get the total product?

• Subtract them

• Multiply them

• Add them

• Divide them

What is the first step in solving 25 times 8 using the standard algorithm?

• Multiply the tens place

• Add the numbers

• Multiply the ones place

• Divide the numbers

What is the product of 5 times 8 in the standard algorithm?

• 30

• 35

• 40

• 45

What is the product of 3 times 78?

• 204

• 214

• 224

• 234

What is the product of 4 times 56?

• 194

• 214

• 204

• 224

What is the product of 9 times 42?

• 358

• 368

• 348

• 378