Walsh-Suzzallo Arithmetic: By Grades. Third-[eighth] year

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Δημοφιλή αποσπάσματα

Σελίδα 121 - 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.
Σελίδα 92 - A number is divisible by 3 when the sum of its digits (figures) is divisible by 3 ; it is divisible by 9, when the sum of its digits is divisible by 9.
Σελίδα 39 - ... and move the decimal point in the dividend as many places to the left as there are zeros cut off'.
Σελίδα 49 - Rectangular Solids A rectangular prism is a solid having six rectangular faces. When all the faces are square, the solid is called a cube. When the ends are square and the four remaining faces are rectangles, the solid is called a square prism. A surface has two dimensions, length and breadth ; a solid has three : length, breadth, and thickness. Volume of Rectangular Solids The volume of a rectangular prism is the continued product of the length by the breadth by the thickness. Sight Problems 1....
Σελίδα 51 - Ib. to the cubic foot, how many tons of feed will it hold ? Make rough diagrams when necessary. 11. Find the number of square yards in the area of a right triangle having a base of 13 yd. 1 ft. and a perpendicular of 19 yd. 1 ft. 6 in. 12. A field in the form of a right triangle contains an acre. If the perpendicular is 24 rods, what is the base ? 13. A room is 18 ft. long, 15 ft. wide, and 9 ft. high. How many square yards of surface are there in the walls and the ceiling? 14. The rug on a parlor...
Σελίδα 151 - Change both weights to ounces. 18. If a man can do f of a piece of work in 4| days, what part of it can he do in 3| days?
Σελίδα 149 - ... 48 inches long and 36 inches wide? 9. The floor of a hall 36 feet long and 6 feet wide is paved with marble blocks 1 foot square. How many blocks did it take to pave the hall? 10. A hall 24 feet long and 6 feet wide is paved with tiles 6 inches square.

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