SUBJECT
Algebra
Trigonometry
21
Geometry
6
Study and teaching
5
Study and teaching (Secondary)
4
Arithmetic
3
Mathematics
3
Problems, exercises, etc
2
Study and teaching (Elementary)
2
Trigonometry, plane
2
Addresses, essays, lectures
1
Algebra and trigonometry
1
Business mathematics
1
Calculating machines
1
Calculus
1
Carbon dioxide
1
Data processing
1
Dictionaries
1
Environmental aspects
1
Environmental sciences
1
Functions
1
Geometry, Analytic
1
Global warming
1
Graphic calculators
1
Graphic methods
1
History
1
Mathematical analysis
1
Mathematical models
1
Mathematical recreations
1
Matrices
1
Numbers, theory of
1
Problem solving
1
Problems, exercises
1
Problems, exercises, examinations, etc
1
Programmed instruction
1
Trigonometry, Plane
1