8.26 Multiply and Divide Rational Numbers CFA

Multiple Choice

Which of the following best describes the term 'product' as shown in the vocabulary table?

• The answer to a multiplication problem

• The answer to a division problem

• A number with a decimal place

• A number used as a factor

Multiple Choice

Nora used 0.08 kilograms of chocolate morsels to make 4 deluxe chocolate chip cookies. How many kilograms of chocolate morsels, on average, did she put in each cookie?

• 2 kg

• 0.02 kg

• 0.2 kg

• 0.002 kg

Multiple Select

Alexis saved $1,450 over the summer break. She spent $$\frac{3}{10}$$ of her savings on things for her new dorm room.

Select all the expressions that represent the amount of money Alexis spent.

• (0.3)(1,450)

• ( $$\frac{3}{5}$$ )(1,450)

• $1,420

• ( $$\frac{3}{10}$$ ) ÷ 1,450

• ( $$\frac{3}{10}$$ ) × 1,450

Multiple Choice

A container of apple juice contains 40.75 fluid ounces. It is shared equally among 5 people. How many ounces of juice does each person receive?

• 8 ounces

• 0.815 ounces

• 8.15 ounces

• 8.25 ounces

Multiple Choice

Joe drops a rock into the sea. The rock drops at a rate of 3 inches per second. How many inches below sea level does it drop after 5 seconds? Select the expression that represents this situation.

• (–3)(–5) = 15

• (–3)(5) = –15

• (3)(5) = 15

• (3)(–5) = 15

Open Ended

How can I multiply and divide rational numbers?