Exploring Operations with Rational Numbers

What is the essential question for this lesson?

• What is the best way to add and subtract rational numbers?

• What are the properties of rational numbers?

• How do you convert fractions to decimals?

• How do you use different forms of rational numbers and strategically choose tools to solve problems?

Which operations are included in rational number operations?

• Addition and subtraction only

• None of the above

• Multiplication and division only

• Addition, subtraction, multiplication, and division

In the example of centering a picture, what is the length of the wall?

• 90 inches

• 44 and 8 inches

• 120 and 3/4 inches

• 32 and a half inches

How far from each edge of the wall should John place the picture?

• 45 inches

• 44 and 8 inches

• 120 and 3/4 inches

• 32 and a half inches

How many quarter cup servings are in the five-pound bag of flour?

• 4.49

• 76

• 15.2

• 19

How many batches of muffins can Elena make with the five-pound bag of flour?

• 19

• 20

• 15.2

• 15

What is the cost of flour for one batch of muffins?

• 4.49 dollars

• 1.25 dollars

• 0.29 dollars

• 0.30 dollars

What should you do to check the reasonableness of your answer?

• Ask a friend

• Ignore the answer

• Round the numbers and recheck

• Use a calculator

What is the next topic to be covered in a separate video?

• Subtraction of rational numbers

• Multiplication of rational numbers

• Addition of rational numbers

• Percentages

What should you do if you have questions about the lesson?

• Ask your classmates

• Ignore them

• Check out other videos and ask for help

• Skip to the next lesson