Traditional and Generic Rectangle Multiplication

The video tutorial explains how to multiply a three-digit number by a two-digit number using the generic rectangle method. It begins by expanding the numbers 452 and 31, then calculates partial products by multiplying each part. The partial products are added to get the final result. The tutorial also demonstrates the traditional multiplication method to verify the answer, ensuring both methods yield the same result.

What is the purpose of using a generic rectangle in multiplication?

• To add numbers quickly

• To divide numbers into smaller parts for easier calculation

• To subtract numbers efficiently

• To divide numbers accurately

How is the number 452 expanded in the generic rectangle method?

• 400 + 52

• 4 + 5 + 2

• 450 + 2

• 400 + 50 + 2

What is the expanded form of the number 31?

• 30 + 1

• 31 + 0

• 30 + 10

• 3 + 1

What is the next step after drawing the rectangle in the generic rectangle method?

• Subtract the numbers

• Multiply the numbers directly

• Separate the rectangle for partial products

• Add the numbers

What is the basic fact for calculating 30 times 400?

• 3 times 4

• 30 times 4

• 3 times 40

• 30 times 40

How many zeros are added to the product of 3 times 4 in 30 times 400?

• No zeros

• Three zeros

• Two zeros

• One zero

What is the partial product of 30 times 50?

• 15000

• 15

• 1500

• 150

What is the result of 30 times 2 in the generic rectangle method?

• 6000

• 60

• 600

• 6

What is the role of patterns of zeros in multiplication?

• To divide numbers correctly

• To make subtraction easier

• To simplify addition

• To determine the number of zeros in the product

What is the partial product of 1 times 400?

• 400

• 40

• 4

• 4000