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算术
a branch of mathematics that deals with addition, subtraction, multiplication, etc.
Arithmetic is the branch of mathematics that deals with basic number operations such as addition, subtraction, multiplication, and division. It forms the foundation for more advanced mathematical topics and is used in everyday tasks like shopping, budgeting, and time management. It focuses on solving simple numerical problems and understanding basic number concepts.
- Students in elementary school learn basic arithmetic operations such as addition, subtraction, multiplication, and division.
小学生学习基本的算术运算，如加法、减法、乘法和除法。
- He excelled in arithmetic and quickly mastered mental math techniques.
他在算术方面表现出色，并迅速掌握了心算技巧。
- The study of arithmetic dates back to ancient civilizations, where early mathematicians developed techniques for counting and calculating.
算术的研究可以追溯到古代文明，早期的数学家在那里开发了计数和计算的技术。
- The teacher focused on arithmetic during today's lesson, covering addition and subtraction.
老师在今天的课上专注于算术，涵盖了加法和减法。
- He struggled with arithmetic in elementary school but improved with extra practice.
他在小学时苦苦挣扎于算术，但通过额外的练习有所提高。