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" ... thick ? To find the number of board feet in a piece of lumber, multiply the number of board feet in one foot of the length by the number of feet in the length of the piece. 5. Find the number of board feet in 16 pieces of 3 "
Essentials of Arithmetic, Oral and Written - Page 160
by John William McClymonds, David Rhys Jones - 1907 - 324 pages
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Problems in Arithmetic: Oral and Written : for Supplementary Or Independent ...

Gordon Augustus Southworth - Arithmetic - 1903 - 152 pages
...to their sum the square root of their product. (3) Multiply this result by one-third the altitude. To find — The Number of Board Feet in a Piece of Lumber. Multiply the product of its length and width in feet by its thickness in inches. (Disregard thickness when it is...
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An Introductory Arithmetic

David Martin Sensenig, Robert F Anderson - Arithmetic - 1903 - 274 pages
...feet in the plank, if 1 inch thick. . 2x7xu_ <i « u « u « .1 ii 2 inches thick. . . u Therefore, to find the number of board feet in a piece of lumber more than one inch thick : Multiply together the number of feet in the length, the number of inches...
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An Introductory Arithmetic

David Martin Sensenig, Robert F Anderson - Arithmetic - 1903 - 272 pages
...in the plank, if 1 inch thick. . 2x7x15 = « (i << i< it .i « « 2 inches thick. - " 12 Therefore, to find the number of board feet in a piece of lumber more than one inch thick : Multiply together the number of feet in the length, the number of inches...
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First Book in Arithmetic

California. State Text-Book Committee - Mathematics - 1905 - 264 pages
...measured by the board foot. A board foot is a piece of lumber one foot long, one foot wide, and one inch thick. To find the number of board fee.t in a piece of lumber, multiply the .length of the piece in feet by the thickness of the piece in inches, and this by the width of the...
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First Book in Arithmetic

John William McClymonds - 1905 - 264 pages
...measured by the board foot. A board foot is a piece of lumber one foot long, one foot wide, and one inch thick. To find the number of board feet in a piece of lumber, multiply the length of the piece in feet. by the thickness of the piece in inches, and this by the width of the...
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Elementary Arithmetic

John William McClymonds, D. R. Jones - Arithmetic - 1905 - 264 pages
...measured by the board foot. A board foot is a piece of lumber one foot long, one foot wide, and one inch thick. To find the number of board feet in a piece of lumber, multiply the length of the piece in feet by the thickness of the piece in inches, and this by the width of the piece...
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Key to the Southworth-Stone Arithmetics

Gordon Augustus Southworth - 1906 - 332 pages
...to their sum the square root of their product. (3) Multiply this result by one-third the altitude. To find — The Number of Board Feet in a Piece of Lumber. Multiply the product of its length and width in feet by its thickness in inches. (Disregard thickness when it is...
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Yearbook of Agriculture

United States. Department of Agriculture - Agriculture - 1894 - 376 pages
...count sizes. volume unit 1" in thickness, by one foot in length and one foot in width. To determine the number of board feet in a piece of lumber, multiply the thickness (in inches) by the width (in feet), by the length (in feet). For example, a 2" x 4" twelve...
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Advanced Arithmetic

John William McClymonds, David Rhys Jones - Arithmetic - 1910 - 336 pages
...is there in a piece of board 1 ft. long, 6 in. (| ft.) wide, and 1 in. thick ? 1 ft. long, 8 in. (^ ft.) wide, and 1 in. thick ? 1 ft. long, 4 in. (£...the width. Taking 4" as the 16 xnx 3 x A board feet = ™J^ f1 ° ™?» r °f b°ard ^ feet in 1 ft of the length is 192 board feet. 3 x A boi"-d feet;...
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Advanced Arithmetic

John William McClymonds, David Rhys Jones - Arithmetic - 1910 - 338 pages
...ft.) wide, and 1 in. thick ? 1 ft. long, 8 in. (f ft.) wide, and 1 in. thick? 1 ft. long, 4 in. (J ft.) wide, and 1 in. thick? 4. A piece of board 1...or 4 " as the width. Taking 4" as the 16 x n x 3 x board feet = "TT i° f r ffl feet in 1 ft of the length is 192 board feet. 3 x A board feet : » nd...
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