Exploring Adding and Subtracting Rational Expressions

This video tutorial covers the process of dividing decimals by decimals. It begins with an introduction to the concept, followed by six detailed examples that illustrate different scenarios of decimal division, including handling remainders and dividing larger numbers. The tutorial concludes with application problems that demonstrate how to apply these skills in real-world situations.

What is the first step in dividing decimals?

• Subtract the divisor from the dividend

• Add zeros to the dividend

• Move the decimal in the divisor

• Move the decimal in the dividend

In Example 1, what is the final answer when 27.2 is divided by 1.6?

• 16

• 17

• 19

• 18

In Example 2, after moving the decimal, what is the new divisor?

• 1.8

• 18

• 180

• 1.80

What is the result of 131.4 divided by 1.8 in Example 2?

• 7.5

• 7.4

• 7.6

• 7.3

In Example 3, how many decimal places do you move the divisor?

• One

• Two

• Three

• Four

What is the final answer for 292.5 divided by 24 in Example 4?

• 12.1875

• 12.187

• 12.18

• 12.19

In Example 5, what is the new problem after moving the decimal?

• 3000 divided by 8

• 300 divided by 8

• 3000 divided by 80

• 30 divided by 8

How many blocks are there if the total height is 18.2 inches and each block is 0.7 inches tall?

• 24

• 25

• 26

• 27

How many pounds of jellybeans did Marcus buy if he spent $7.74 and the cost per pound is $6.45?

• 1.4 pounds

• 1.2 pounds

• 1.3 pounds

• 1.1 pounds

How many quarters are needed to make a stack that is at least 2 inches tall if each quarter is 0.07 inches thick?

• 31

• 30

• 29

• 28