Understanding the Standard Algorithm for Multiplication

Understanding the Standard Algorithm for Multiplication

Assessment

Interactive Video

Mathematics

4th - 5th Grade

Medium

Created by

Thomas White

Used 1+ times

FREE Resource

The video tutorial explains the standard algorithm for multiplication. It begins with an introduction to algorithms, followed by setting up the multiplication problem. The tutorial then demonstrates multiplying by the ones digit on the first line and the tens digit on the second line, emphasizing the importance of carrying over digits. The process is completed by adding the results to solve the problem. The video concludes with a summary of the standard algorithm, highlighting the steps involved in multiplying by ones, tens, and hundreds digits.

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in setting up a multiplication problem using the standard algorithm?

Draw a line under the numbers

Place the multiplication sign at the bottom

Align the numbers with the largest on top

Align the numbers with the smallest on top

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is squared paper recommended for setting up multiplication problems?

It makes the numbers look bigger

It helps in aligning the numbers neatly

It is easier to erase mistakes

It is more colorful

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When multiplying by the ones digit, where do you place the tens part of the product?

To the left of the current number

To the right of the current number

Below the line

Above the line and next to the next figure

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in the standard algorithm for multiplication?

Subtract the numbers

Multiply by the tens digit

Add the numbers

Multiply by the ones digit

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should you do with the carried digits before starting the next line of multiplication?

Add them again

Cross them out

Multiply them by the next digit

Ignore them

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should you do if you accidentally add the carried digits twice?

Subtract them from the final result

Ignore the mistake

Redo the multiplication

Add them again

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to cross out carried digits after using them?

To make the paper look neat

To remember the numbers

To make the process faster

To avoid adding them again

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