Activities / Library / Books

Mathematical Sciences Classification System

97Fxx - Arithmetic, number theory

• 97F10
  Comprehensive works
• 97F20
  Pre-numerical stage, concept of numbers
• 97F30
  Natural numbers
• 97F40
  Integers, rational numbers
• 3
  97F50
  Real numbers, complex numbers
• 1
  97F60
  Number theory
• 97F70
  Measures and units
• 97F80
  Ratio and proportion, percentages
• 97F90
  Real life mathematics, practical arithmetic
• 97F99
  None of the above, but in this section