Summary  
This chapter explains Dart’s numeric types—int, double, and num—and how to declare and use them. It also covers arithmetic operations and type conversion between integer and floating-point values.

General domain of usage  
Mathematical computations

Master the essentials of variables and data types in Dart. This course guides absolute beginners through Dart's variable declarations, type inference, core data types, and null safety, using engaging explanations and real-world themed challenges.

Explore how to declare variables in Dart, the difference between var, final, and const, and how type inference works compared to explicit typing.

Dive into Dart's essential data types: int, double, bool, String, and num. Learn how and when to use each type.

Understand Dart's approach to null safety, including nullable and non-nullable types, default values, and null checks.

Numbers in Dart: int, double, and num