Applied Arithmetic: Book 3 (1920)J.B. Lippincott Company, 1920 - Arithmetic Three-book series is intended to cover the work in Arithmetic of the second, third, and fourth grades. The principles which have guided the authors may be grouped under three main heads: 1. Selection and organization of subject matter; 2. Derivation and application; and 3. Motivation.--From preface. |
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Applied Arithmetic: The Three Essentials, Volume 3 Nels Johann Lennes,Frances Jenkins No preview available - 2016 |
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60 days acre altitude angles approximation arithmetic average bank base bill bonds bought bushels butter fat called calories cash cents coal common fraction computed cone cost cube root cubic foot cylinder denominator diameter discount divide dividend divisible divisor dollars draft equal equation equilateral triangle Example expenditures expenses factors feet wide figure Find the amount Find the area Find the interest Find the ratio Find the total Find the volume gallons given Hence improper fraction integer investment kilometers lateral area Liberty Bonds loan longitude measure meters miles milk mixed number months multiply ORAL EXERCISES paid payment percentage pounds pounds sterling prime meridian principal prism problems pyramid quotient radius rate of interest Reduce sell shares sides similar triangles slant height sold Solution sphere square kilometer square root subtraction tons unit weight WRITTEN EXERCISES Find yards yearly
Popular passages
Page 47 - A number is divisible by 9 if the sum of its digits is divisible by 9.
Page 238 - A Circle is a plane figure bounded by a curved line every point of which is equally distant from a point within called the center.
Page 244 - Art. 338, that in a proportion, either extreme is equal to the product of the means, divided by the other extreme ; and either of the means is equal to the product of the extremes, divided by the other mean.
Page 49 - Both terms of a fraction may be divided by the same number without changing the value of the fraction.
Page 44 - A fraction is one or more of the equal parts of a unit...
Page 255 - To find the diameter of circle having given area: Divide the area by .7854, and extract the square root. To find the volume of a cylinder: Multiply the area of the section in square inches by the length in inches = the volume in cubic inches. Cubic inches divided by 1728 = volume in cubic feet.
Page 316 - The unit of weight is the GRAM, which is the weight of one cubic centimeter of pure water weighed in a vacuum at the temperature of 4 deg.
Page 242 - The Ratio of one number to another is the quotient obtained by dividing the first number by the second. Thus, the ratio of a to b is - ; and it is also expressed a : b.
Page 66 - Hence, to reduce a common fraction to a decimal, Divide the numerator by the denominator.
Page 81 - If 12 men can do a piece of work in 10 days, how long will it take 1 man to do it ? How long will it take 8 men ? How long 6 men ? 9.