- Addition (加法)
Number (Mathematical object)
- Additive inverse (反数)
- Integer (整数)
Entropy encoding (lossless compression)
- Arithmetic coding (算術符号)
Central tendency
- Arithmetic mean (算術平均)
Sequence of numbers
- Arithmetic progression (等差数列)
Algebraic structure
- Ring (mathematics) (環)
Rules of replacement (Transformation rule)
- Associative property (結合法則)
- Commutative property (交換法則)
- Distributive property (分配法則)
Arithmetic
- Elementary arithmetic
- Finite field arithmetic
- Mental calculation (暗算)
Coordinate system (Geometry)
- Number line