THE ARABIC SYSTEM OF NOTATION 1
THE ROMAN SYSTEM OF NOTATION 12
THE FUNDAMENTAL RULES 13
ADDITION 14
SUBTRACTION 23
MULTIPLICATION 31
DIVISION 42
COMPOUND NUMBERS 63
FACTORING 110
FRACTIONS 123
PRACTICE 157
DECIMAL FRACTIONS 160
THE METRIC SYSTEM 181
PERCENTACE 189
INTEREST 211
DISCOUNT 239
EXCHANGE 252
INSURANCE 257
TAXES 261
RATIO 268
PROPORTION 274
INVOLUTION 290
EVOLUTION 292
MENSURATION 308
PROGRESSIONS 323