options: Apply and extend previous understandings of addition and subtraction to add and subtract rational numbers; represent addition and subtraction on a horizontal or vertical number line diagram.

Apply and extend previous understandings of multiplication and division and of fractions to multiply and divide rational numbers.

Solve real-world and mathematical problems involving the four operations with rational numbers. (Computations with rational numbers extend the rules for manipulating fractions to complex fractions.)
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: 0