The resource contains 12 task cards aligned to the common core standard 5.OA.1. They could be used as a math center or activity for math workshop. They could also be used as independent practice or a quick assessment.
Common Core Standard -- 5.OA.1. Use parentheses, brackets, or braces in numerical expressions, and evaluate expressions with these symbols.
Each task card is numbered and labeled with the common core standard. A recording sheet and answer sheet are included.