Multiplication by Multi-Digit Numbers

This lesson teaches how to multiply two three-digit numbers using the standard method. It covers arranging numbers, multiplying each digit from right to left, and using placeholders. The process involves multiplying the ones, tens, and hundreds digits separately, recording results, and adding them to find the final product. The lesson concludes with a summary of the multiplication process, resulting in a final answer of 74,258.

What is the first step in setting up the multiplication of two three-digit numbers?

• Write the multiplication symbol

• Arrange the digits into columns

• Start multiplying the digits

• Draw a line below the numbers

When multiplying the ones digit of the bottom factor, where should the results be written?

• In the hundreds column

• Starting from the ones column

• In the tens column

• In a new line

What should be done with the carry-over number during multiplication?

• Subtract it from the next digit

• Ignore it

• Add it to the next multiplication step

• Write it in the answer directly

How do you handle the tens digit in the bottom factor during multiplication?

• Multiply it by the top digits and write results in the same line

• Ignore the tens digit

• Multiply it by the top digits and write results in a new line starting from the tens column

• Multiply it by the top digits and write results in a new line starting from the ones column

What is the final step to find the product of the two numbers?

• Multiply the results of the three rows

• Add up the three products using standard addition

• Subtract the smallest product from the largest

• Divide the sum of the products by three