Array and Standard Algorithm Methods

This video tutorial explains two methods of multiplication: the standard algorithm and the array method. It begins with an introduction to both methods, followed by a detailed example of multiplying a two-digit number by a one-digit number (73 times 6) using both methods. The video then progresses to a more complex example of multiplying two two-digit numbers (56 times 78), again demonstrating both methods. The tutorial concludes with a summary and a preview of the next video, which will cover division.

What are the two multiplication methods discussed in the video?

• Standard algorithm and division method

• Array method and addition method

• Standard algorithm and array method

• Subtraction method and array method

In the array method, how is the number 73 represented?

• As 70 + 3

• As 7 + 3

• As 73

• As 7 * 3

What is the first step in the array method for multiplying 73 by 6?

• Multiply 73 by 6 directly

• Add 70 and 3

• Multiply 3 by 6

• Multiply 70 by 6

In the standard algorithm, what do you do with the number 18 when multiplying 73 by 6?

• Ignore the carry

• Write 1 and carry 8

• Carry 1 and write 8

• Write 18 directly

What is the result of 73 * 6 using both methods?

• 438

• 436

• 420

• 442

What is the first step in the array method for multiplying 56 by 78?

• Multiply 56 by 8

• Multiply 8 by 6

• Multiply 56 by 70

• Multiply 70 by 6

In the array method, what is the result of multiplying 8 by 50?

• 400

• 450

• 350

• 500

In the standard algorithm, what is the result of multiplying 7 by 6?

• 42

• 420

• 350

• 35

What is the final result of 56 * 78 using both methods?

• 4,320

• 3,920

• 3,992

• 4,368