A Key to Rose's Explanatory and Practical Arithmetic (Classic Reprint) - Tapa blanda

Sinopsis

Excerpt from A Key to Rose's Explanatory and Practical Arithmetic

Significations. The sign of equal; as, 100 cents=$l. The sign of addition; as, The sign of subtraction; as, 8 x The sign of multiplication; as, 4x3=12. The sign of division; as, l2 The sign of proportionality; as, 2: 12. The sign of the square root; as, y The sign of the cube root; as, V64=4. The sign of the fourth root; as, V64=2. The sign of dollars; as, or 8 dols., or 8 D. The sign of adecimal part of a dollar; as $375, or, 75 cts., or 75 c. 9 - 2 +6=l3. A vinculum connects all the num bers over which it is drawn; 9 less 2 more 6 equals 13. 12 denotes 12 less 3 and 5 equal 4, c.

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