The video tutorial explains how to perform two-digit by one-digit multiplication. It begins with an introduction to the concept, followed by a step-by-step demonstration of multiplying the ones and tens places separately. The tutorial emphasizes the importance of understanding place values and handling zeros when multiplying. Finally, it combines the partial products to arrive at the final result, demonstrating the calculation of 23 times 7, which equals 161.

What is the main topic discussed in the video?

• Addition of two-digit numbers

• Subtraction of one-digit numbers

• Division of two-digit numbers

• Two-digit by one-digit multiplication

How many digits does the number 23 have?

• One

• Two

• Three

• Four

What is the result of multiplying 7 by 3?

• 21

• 20

• 19

• 18

What is the first step in multiplying a two-digit number by a one-digit number?

• Multiply the tens place

• Multiply the ones place

• Subtract the numbers

• Add the numbers

What is the first partial product in the multiplication of 23 and 7?

• 21

• 35

• 28

• 14

What does the number 2 in 23 represent when multiplying?

• 200

• 2000

• 20

• 2

What is the result of multiplying 7 by 2?

• 14

• 12

• 13

• 15

What should you do with the zero when multiplying by a two-digit number?

• Ignore it

• Add it back after multiplication

• Multiply it separately

• Subtract it

What is the second partial product in the multiplication of 23 and 7?

• 140

• 150

• 160

• 170

What is the final step in finding the product of 23 and 7?

• Subtract the partial products

• Multiply the partial products

• Add the partial products

• Divide the partial products