Basic arithmetic is the branch of mathematics that deals with the fundamental operations of numbers. These operations include addition, subtraction, multiplication, and division. Each operation has its own unique purpose: addition combines numbers, subtraction removes one number from another, multiplication is repeated addition, and division splits a number into equal parts. These operations are essential for everyday calculations, such as budgeting, measuring, and problem-solving. Understanding basic arithmetic helps build a foundation for more advanced mathematical concepts and is crucial for various real-life applications, from shopping to cooking and beyond.