standard_description: Use parentheses, brackets, or braces in numerical expressions, and evaluate expressions with these symbols.
problem_activity: Problem 1
Solve.
$${87\div31}$$
Problem 2
Sam played arcade games and won 79 tickets. You can buy 1 prize for every 18 tickets earned. Sam bought as many prizes as he could with his tickets. How many prizes was Sam able to buy?


aligns: no