BOOK I.
SECTION PAGE I. Numeration 1 II. Addition and Subtraction 14 III. Multiplication 24 IV. Division 34 V. Fractions 51 VI. Decimal Fractions 65 VII. Square Root 89 VIII. Proportion 100 IX. Permutations and Combinations 118
SECTION PAGE I. Numeration 1 II. Addition and Subtraction 14 III. Multiplication 24 IV. Division 34 V. Fractions 51 VI. Decimal Fractions 65 VII. Square Root 89 VIII. Proportion 100 IX. Permutations and Combinations 118