options: Apply and extend previous understandings of multiplication and division to divide fractions by fractions.

Apply and extend previous understandings of numbers to the system of rational numbers.

Apply and extend previous understandings of operations with fractions to add, subtract, multiply, and divide rational numbers.

Use properties of rational and irrational numbers.

Compute fluently with multi-digit numbers and find common factors and multiples.

Extend the properties of exponents to rational exponents.

Represent complex numbers and their operations on the complex plane.

Know that there are numbers that are not rational, and approximate them by rational numbers.

Represent and model with vector quantities.

Perform operations on matrices and use matrices in applications.

Perform arithmetic operations with complex numbers.

Reason quantitatively and use units to solve problems.

Perform operations on vectors.

Use complex numbers in polynomial identities and equations.
problem_activity: Task
Use the computation shown below to find the products.
[IMG]
$189\times 16$
$80\times 16$
$9 \times 16$


correct_option_index: 4