Multiplying and Dividing Whole Numbers by 10, 100, and 1000

The video tutorial explains simple tricks for multiplying and dividing whole numbers by 10, 100, and 1000. It emphasizes that these tricks only work with whole numbers, not decimals. The tutorial also covers how to find missing multipliers and divisors in equations by analyzing the number of zeros involved.

What is the result of multiplying 45 by 10?

• 450

• 4500

• 45

• 45000

How do you multiply 67 by 100?

• 67000

• 6700

• 67

• 670

What is 23 times 1000?

• 230000

• 2300

• 23000

• 23

How many zeros do you add to the number 32 when multiplying it by 100?

• 2

• 0

• 1

• 3

What is the trick for multiplying a whole number by 1000?

• Add three zeros to the end

• Multiply by 10 three times

• Double the number and add two zeros

• None of the above

If you multiply 89 by 10, what is the correct way to find the answer?

• Double 89 and add a zero

• None of the above

• Multiply 89 by 10 using long multiplication

• Add one zero to the end of 89

If you divide 400 by 10, what do you get?

• 40

• 4

• 4000

• 400

What is the result of dividing 5500 by 100?

• 55000

• 5.5

• 550

• 55

When dividing a number that ends in three zeros by 1000, what do you do?

• Divide the number by 10 three times

• None of the above

• Remove three zeros from the end

• Add three zeros

What is 600 divided by 100?

• 6000

• 6

• 60

• 600