Arithmetics is a branch of mathematics that focuses on the study of numbers and basic operations. It is commonly known as arithmetic operations and is a fundamental skill to understand advanced mathematics. Some synonyms for the word arithmetics include calculation, computation, counting, reckoning, and arithmetic operation. These terms describe calculating basic functions such as addition, subtraction, multiplication, and division. Arithmetics is a critical skill that helps people in their everyday life, from calculating grocery bills to measuring the dimensions of a room. No matter which synonym you use, arithmetics remains a vital element of mathematics and an essential skill to possess.