Multiplying Numbers with Zeros

The video tutorial explains multiplication as combining equal groups and introduces basic multiplication strategies such as drawing groups, arrays, and repeated addition. It then extends these concepts to multiplying numbers with zeros, demonstrating how to add zeros to the product of the whole numbers. The tutorial provides practical examples and emphasizes the importance of placing commas in large numbers. The lesson concludes with a review of the key concepts.

What is the basic concept of multiplication?

• Subtracting numbers

• Putting equal groups together

• Adding numbers repeatedly

• Dividing numbers into parts

Which of the following is an example of basic multiplication?

• 3 / 4

• 3 x 4

• 3 + 4

• 3 - 4

What is one strategy to remember basic multiplication facts?

• Using a calculator

• Drawing groups or arrays

• Guessing the answer

• Ignoring the problem

How can basic multiplication facts help in multiplying larger numbers with zeros?

• By adding the numbers

• By subtracting the numbers

• By dividing the numbers

• By using the basic facts and adding zeros

What is the result of multiplying 3 by 40?

• 40

• 400

• 120

• 12

When multiplying numbers with zeros, what should you do after multiplying the whole numbers?

• Divide the answer by the number of zeros

• Ignore the zeros

• Subtract the zeros

• Add the zeros to the end of the answer

What is the result of multiplying 3 by 400?

• 120000

• 12000

• 1200000

• 1200

How many zeros should be added to the result of 3 x 4 when multiplying 3 by 400?

• 1

• 2

• 4

• 3

What is the result of multiplying 3 by 4000?

• 120000

• 12000

• 1200

• 1200000

How many zeros should be added to the result of 3 x 4 when multiplying 3 by 4000?

• 4

• 3

• 2

• 1