The starting point of arithmetic calculation is the idea of an expression: a piece of writing that combines numbers and operations and to which we can assign a value.
Definition — Numerical expression
A numerical expression is a combination of numbers linked together by operations (addition, subtraction, multiplication, division, raising to a power).
Solving an expression means carrying out all the indicated operations, in the right order, until a single number is obtained: its value.
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Topics: Numbers and operations
Concepts: Numerical expression