options: Reason quantitatively and use units to solve problems.

Perform arithmetic operations with complex numbers.

Represent and model with vector quantities.

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

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

Use complex numbers in polynomial identities and equations.

Extend the properties of exponents to rational exponents.

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

Use properties of rational and irrational numbers.

Perform operations on vectors.

Perform operations on matrices and use matrices in applications.

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

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

Represent complex numbers and their operations on the complex plane.
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: 4