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 Βιβλία Βιβλία How to measure boards. RULE. — Multiply the length (in feet) by the width (in inches) and divide the product by 12 — the result will be the contents in square feet. The North American Arithmetic: Part Second, Uniting Oral and Written ... - Σελίδα 128
των Frederick Emerson - 1832 - 216 σελίδες
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο ## A New and Easy Introduction to the Mathematics: Containing. A system of ...

Ira Wanzer - 1831 - 396 σελίδες
...quotient will be the mean breadth. Note 2. — If you multiply the length in feet by the mean breadth in inches, and divide the product by 12, the quotient will be the superficial content in square feet. — In measuring boards, timber, &c. it will be convenient... ## The North American Arithmetic: Part Second, Uniting Oral and Written ...

Frederick Emerson - 1844 - 216 σελίδες
...is measured thus — Multiply the length in feet by the width in inches, and divide the product Ay 12; the quotient will be square feet. 11. How many...of boards will floor a room 14 by 18 feet, allowing ^ of the stuff for waste ? PLANK AND JOIST are measured by finding how many square feet of boards,... ## North American Arithmetic: Part Second and Part Third, Μέρος 2

Frederick Emerson - 1846 - 216 σελίδες
...are sold by the thousand square feet, and each board is measured thus — Multiply the length in feet by the width in inches, and divide the product by 12; the quotient will lie square feet. 11. How many square feet are there in 17 boards, each board being 21 feet long, and... ## The North American Arithmetic: Part Second, Uniting Oral and Written ...

Frederick Emerson - 1849 - 216 σελίδες
...are sold by the thousand square feet, and each board is measured thus — Multiply the length in feet by the width in inches, and divide the product by...of boards will floor a room 14 by 18 feet, allowing -jL of the stuff for waste? PLANK AND JOIST are measured by finding how many square feet of boards,... ## The Computist's Manual of Facts: And Merchant's and Mechanic's Calculator ...

Ezra S. Winslow - 1853 - 252 σελίδες
...result. MENSURATION OF LUMBER. To find the contents of a board. RULE. — Multiply the length in feet by the width in inches, and divide the product by 12 ; the quotient will be the contents in square feet. EXAMPLE. — A board is 16 feet long and 10 inches wide ; how many square... ## A Key to Chase's Common School Arithmetic: With Explanations and Remarks ...

...following are of quite general use : — MEASUREMENT OF BOARDS. RULE. — Multiply the length in feet by the width in inches, and divide the product by 12. The quotient will be the contents in feet. Examples. ' 1. Required the contents of a board 16 ft. long and 8 in. wide. Ans.... ## The Foreign and Domestic Commercial Calculator; Or, A Complete Library of ...

Ezra S. Winslow - 1867 - 220 σελίδες
...5.31 MENSURATION OF LUMBER. To find the contents of a board. RULE. — Multiply the length in feet by the width in inches, and divide the product by 12; the quotient will be the contents in square feet. EXAMPLE. — A board is 16 feet long and 10 inches wide; how many square... ## The Crittenden Commercial Arithmetic and Business Manual: Designed for the ...

John Groesbeck - 1868 - 348 σελίδες
...inches', odd inches not being counted. 400. To measure boards. RULE.—Multiply the length in feet by the width in inches, and divide the product by 12; the quotient will be the number of square feet. When the board is more or less than 1 inch thick, add or subtract in proportion.... ## THE CRITTENDEN COMMERCIAL ARITHMETIC AND BUSINESS MANUAL

JOHN GROESBECK, - 1868
...even inches, odd inches not being counted. 400. To measure boards. RULE.—Multiply the length in feet by the width in inches, and divide the product by 12; the quotient will be the number of square feet. When the board is more or less than 1 inch thick, add or subtract in proportion.... ## The Crittendon Commercial Arithmetic and Business Manual: Designed for the ...

John Groesbeck - 1871 - 344 σελίδες
...inches, odd inches not being counted. 400. To measure boards. RULE. — Multiply the length in feet by the width in inches, and divide the product by 12 ; the quotient will be the number of square feet. When the board is more or less than 1 inch thick, add or subtract in proportion....