Column Multiplication Techniques

The video tutorial explains how to perform column multiplication of a three-digit number by a two-digit number. It emphasizes the importance of keeping digits in the correct columns and demonstrates the process step-by-step, including handling carry overs and adding zeros when multiplying by tens. The tutorial concludes with adding the results to find the final answer.

Why is it important to keep digits in the correct column during column multiplication?

• To avoid using a calculator

• To make the multiplication look neat

• To make the process faster

• To ensure accurate addition of carried values

What is the result of multiplying 4 by 5 in the units place?

• 15

• 20

• 25

• 30

After multiplying 4 by 5, what do you do with the result?

• Carry over the entire result

• Write it in the tens column

• Write the zero in the units column and carry the two

• Ignore the result

What is the next step after multiplying 4 by 6 in the tens place?

• Add the carried over value

• Write the result directly

• Multiply by 5 again

• Subtract the carried over value

What is the total when you add the carried over value to 4 multiplied by 6?

• 22

• 24

• 26

• 28

What do you do after multiplying 4 by 3 in the hundreds place?

• Write the result directly

• Add the carried over value

• Multiply by 5

• Subtract the carried over value

What is the result of multiplying 4 by 3 and adding the carried over value?

• 18

• 12

• 14

• 16

When multiplying by 20, what is the first step?

• Add a zero in the units column

• Add a zero in the tens column

• Multiply by 10

• Subtract a zero in the units column

What is the result of multiplying 2 by 5 when multiplying by 20?

• 20

• 15

• 10

• 5

What do you do with the result of 2 multiplied by 5 when multiplying by 20?

• Write it in the units column

• Write the zero in the tens column and carry the one

• Ignore the result

• Carry the entire result