Mental Math Number Puzzlers: 2-3-4-5s - Number Operations & Order of Operations PEMDAS GEMA - Multiplication and Division, Addition and Subtraction - Montessori-inspired printable ROOKIE Math help (4 pages + key): These fun, quick exercises are designed to provide math practice to emerging students, encourage those students not confident in their mental math abilities or who are hesitant to learn their facts.What are Number Puzzlers? Using only four of each number (i.e. 5, 5, 5, 5), find a w