Grammar School Arithmetic

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American Book Company, 1900 - Arithmetic - 416 pages
 

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Page 328 - The square of a number composed of tens and units is equal to the square of the tens, plus twice the product of the tens by the units, plus the square of the units. tens' + 2 x tens x units + units
Page 116 - Multiplying or dividing both terms of a fraction by the same number does not change the value of the fraction.
Page 333 - In a right triangle the square of the hypotenuse equals the sum of the squares of the other two sides or legs.
Page 181 - A pile of wood 8 ft. long, 4 ft. wide, and 4 ft. high is called a cord of wood.
Page 282 - ... shall be exempt from all taxes or duties of the United States, as well as from taxation in any form by or under State, municipal, or local authority...
Page 374 - The area of a triangle is equal to one half 'the product of its base and altitude.
Page 368 - A polygon is a plane figure bounded by straight lines. A polygon of three sides is a triangle; of four sides, a quadrilateral; of five sides, a pentagon; of six sides, a hexagon; of eight sides, an octagon; of ten sides, a decagon ; of twelve sides, a dodecagon ; and so on.
Page 77 - A number is divisible by 3 if the sum of its digits is divisible by 3.
Page 45 - ... place. In multiplying a decimal fraction by an integer, there are as many decimal places in the product as there are in the multiplicand.
Page 366 - What is the side of a square whose area is equal to that of a circle 452 feet in diameter ? Ans.

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