options: Represent and model with vector quantities.

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

Perform operations on matrices and use matrices in applications.

Reason quantitatively and use units to solve problems.

Represent complex numbers and their operations on the complex plane.

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

Perform arithmetic operations with complex numbers.

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

Extend the properties of exponents to rational exponents.

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

Use properties of rational and irrational numbers.

Perform operations on vectors.

Use complex numbers in polynomial identities and equations.

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