Mastering the Box Method for Multiplication

The video tutorial demonstrates how to multiply multi-digit whole numbers using various methods, focusing on the box method. The box method involves breaking numbers into expanded form and using an area model to simplify multiplication. The tutorial provides a detailed example of multiplying 25 by 32, explaining each step and emphasizing the importance of predicting and verifying the answer's reasonableness.

What is the main purpose of the video?

• To demonstrate subtraction techniques

• To show different ways to multiply whole numbers

• To teach addition of whole numbers

• To explain division of fractions

What method is introduced first in the video?

• Traditional algorithm

• Box method

• Lattice method

• Partial products method

Tags

CCSS.4.NBT.B.5

How is the number 25 represented in the box method?

• 20 + 5

• 2 + 5

• 25 + 25

• 25 + 0

Tags

CCSS.2.OA.C.4

What is the product of 20 and 30 in the box method?

• 600

• 60

• 300

• 900

Tags

CCSS.5.NBT.B.5

What is the product of 5 and 30 in the box method?

• 15

• 50

• 150

• 300

Tags

CCSS.5.NBT.B.5

What is the product of 20 and 2 in the box method?

• 4

• 200

• 40

• 22

Tags

CCSS.5.NBT.B.5

What is the product of 5 and 2 in the box method?

• 25

• 50

• 10

• 7

Tags

CCSS.4.NBT.B.5

What is the final product of 25 and 32 using the box method?

• 750

• 800

• 700

• 850

Tags

CCSS.5.NBT.B.5

Why is it important to predict the answer before solving?

• To impress the teacher

• To avoid using a calculator

• To check the reasonableness of the final answer

• To make the process faster

What approximate product should you keep in mind for 25 times 30?

• 850

• 750

• 700

• 800

Tags

CCSS.4.NBT.B.5