“PEMDAS” 英文缩写

• PEMDAS Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction    Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction
• PEMDAS Parentheses, Exponents, Multiplication, Division, Addition, Subtraction    Parentheses, Exponents, Multiplication, Division, Addition, Subtraction