Multiplication Methods and Strategies

Multiplication Methods and Strategies

Assessment

Interactive Video

Created by

Thomas White

Mathematics

4th - 5th Grade

Hard

This video tutorial explains a shortcut for multiplying numbers when the bottom number has a zero. It demonstrates the method with examples like 84 * 20, 46 * 40, and 451 * 500, showing how to avoid unnecessary steps. The video also clarifies why this shortcut doesn't apply when the top number contains a zero, using 450 * 23 as an example.

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main topic discussed in the video?

Addition techniques

Multiplication techniques with zeros

Subtraction techniques

Division techniques

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the example 84 * 20, what is the first step when the bottom number has a zero?

Add the numbers directly

Multiply by the zero

Skip the zero and multiply by the next digit

Divide the numbers

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of 84 * 20 using the special case method?

1,680

1,700

1,600

1,840

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you handle the zero in the bottom number when using the shortcut method?

Multiply it by the top number

Bring it down and start with the next digit

Ignore it completely

Add it to the top number

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of 46 * 40 using the shortcut method?

1,640

1,840

1,760

1,860

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main advantage of the shortcut method?

It is easier to understand

It is faster

It is more accurate

It uses fewer numbers

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the key step in the shortcut method when the bottom number has a zero?

Skip the zero and multiply by the next digit

Divide the top number by zero

Add the zero to the top number

Multiply by zero first

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