1. TOP TO BOTTOM TREE STRUCTURE
DDC (Dewey Decimal Classification)
100 –Computer science, information & general works
200 – Philosophy & psychology
300 - Religion
400 – Social sciences
500 –Science
600 - Technology
700 – Arts & recreation
800 - Literature
900 – History & geography
513
Arithmetic
513.1
Arithmetic
combined 513.2 513.5 513.6 513.9
with other Arithmetic Numeration Modular Rapid
branches of Operations System Arithmetic Calculations
mathematic
s

2. .12 .21 .52
Arithmetic Basic Binary
and algebra operations System
.13
Arithmetic .211
and Addition
geometry
.14
Arithmetic, .212
Algebra, Subtraction
geometry
,
.213
Multiplication
.214
Division

3. Library Of Congress Subject Heading (LCSH)
UF = Used for
SA = See also
BT = Broader term
NT = Narrower term
RT = Related term
Arithmetic 513
UF Computation (mathematics)
SA types of arithmetic operations [to be added as needed]
BT Mathematics
Set theory
NT Average
Calculators
Cube root
Fractions
Mental arithmetic
Metric system
Multiplication
Percentage
Ratio and proportion
Square root
Subtraction
RT Numbers