additionsubtraction
Addition and subtraction are fundamental arithmetic operations. Addition, often represented by the plus symbol (+), is the process of combining two or more quantities to find their total. It is a binary operation, meaning it takes two operands. For example, 2 + 3 = 5. The numbers being added are called addends, and the result is called the sum. Subtraction, represented by the minus symbol (-), is the inverse operation of addition. It is used to find the difference between two quantities. For example, 5 - 3 = 2. The number from which another is subtracted is called the minuend, the number being subtracted is called the subtrahend, and the result is called the difference. Subtraction can be thought of as taking away a quantity from another. The properties of addition include commutativity (a + b = b + a) and associativity (a + (b + c) = (a + b) + c). Subtraction does not share these properties. Understanding addition and subtraction is crucial for more advanced mathematical concepts and everyday problem-solving. They are often taught together due to their inverse relationship, which allows for checking the accuracy of calculations. For instance, if a + b = c, then c - b = a.