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

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

Use properties of rational and irrational numbers.

Extend the properties of exponents to rational exponents.

Perform arithmetic operations with complex numbers.

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

Perform operations on vectors.

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

Perform operations on matrices and use matrices in applications.

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

Represent and model with vector quantities.

Use complex numbers in polynomial identities and equations.

Represent complex numbers and their operations on the complex plane.

Reason quantitatively and use units to solve problems.
problem_activity: Problem 1
Circle the expressions below that have a value of 2.
$${8+ (-6)}$$
$${6-8}$$
$${-{8-6}}$$
$${-8+(-6)}$$
$${8-6}$$
$${-6+8}$$
$${-8+6}$$
$${-6 - (-8)}$$
Problem 2
Rewrite each subtraction problem as an addition problem and each addition problem as a subtraction problem.
a.
$${-8-7}$$
b.
$${11+(-3)}$$
c.
$${20-(-2)}$$
d.
$${-4 + 16}$$


correct_option_index: 7