Mental arithmetic is the ability to perform mathematical calculations in your head without the use of a calculator or paper. This skill involves quickly adding, subtracting, multiplying, or dividing numbers mentally. It is useful in everyday situations, such as budgeting, shopping, or estimating distances. Practicing mental arithmetic can improve cognitive skills, enhance memory, and boost confidence in handling numbers. Techniques like breaking numbers into smaller parts or using visualization can help individuals solve problems more efficiently. Many educators encourage mental arithmetic to develop a strong foundation in mathematics for students of all ages.