Standard and Partial Products Methods

This video tutorial covers the fifth-grade concept of multiplying three-digit by two-digit numbers, specifically focusing on Texas standard 5.3b. The instructor uses a problem from the 2017 STAAR test to demonstrate two methods: the partial products method and the standard algorithm. The video begins with an introduction to the problem, followed by a detailed explanation of the partial products method, where each multiplication step is broken down into separate rows. The tutorial then transitions to the standard algorithm, highlighting the efficiency of regrouping. Both methods ultimately lead to the same solution, reinforcing the understanding of multiplication.

What is the main topic of the video tutorial?

• Subtracting two-digit numbers

• Dividing three-digit numbers

• Multiplying three-digit by two-digit numbers

• Adding two-digit numbers

Which standard is being addressed in this tutorial?

• 5.3 A

• 5.3 B

• 5.4 B

• 5.4 A

How many cell phone cases are made each day?

• 500

• 600

• 625

• 31

For how many days are the cell phone cases made?

• 15

• 20

• 31

• 25

What method is introduced first for solving the multiplication problem?

• Division

• Standard algorithm

• Partial products

• Addition

In the partial products method, what is the first multiplication performed?

• 1 times 31

• 1 times 600

• 1 times 20

• 1 times 5

What is the value of 2 in the tens place during the partial products method?

• 2

• 20

• 200

• 2000

What is the result of multiplying 1 by 600 in the partial products method?

• 6000

• 600

• 60

• 6

What is the value of 3 in the tens place during the partial products method?

• 3000

• 30

• 3

• 300

What is the result of 3 times 5 in the partial products method?

• 15

• 150

• 1500

• 5