Subtraction of Directed Numbers 有向數的減法

Author:現代中學數學 Modern Secondary Mathematics

Explore the rules of the subtraction of directed numbers by using a number line. (Bilingual version. Supports both English and Chinese.) 利用數線，探究有向數減法的計算法則。 (雙語版，支援中文和英文)

New Resources

Fourier Lissajous (Mechanical)
Slope Between 2 Points (Phase 2)
Slope and Road Signs
Pathway to Proof: Triangle Angles
Angle Addition: Warm Up Exercises

Discover Resources

Circle Area from polygons with trig
Parapllelograms
wodb day 20
Six trig graphs from unit circle
สื่อปริภูมิสามมิติ

Discover Topics

Expected Value
Linear Regression
Definite Integral
Plane Figures or Shapes
Line Segment