A Mental Arithmetic |
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Common terms and phrases
5-inch cube 5-inch square A's land A's share acres altitude of base amount Avoir B's is A's BASE HEIGHT Base of base bought bushels carriage cent of A's circle of radius circumference cistern cone cubic foot cubic inches cylinder deep discount farmer sold find cost find the cost fraction gain gallons Give the ratio Given principal Given the cost horse hour James mill and sold minute hand number of 27ths par value parallelogram piece of property pipe prism problem pupils pyramid quantity radius 2 ft ratio of A's represented SECTION selling shingles sphere square pyramid square units thick trapezoid triangle triangular prism twice volume walk weighs wheat whole investment whole rectangle whole square wide width wood worth yards of cloth
Popular passages
Page 5 - ... the understanding of such directions and the faithfulness of a class in following them. In determining the pupils' preparation to begin a new line of work the skilled teacher will approach the learners on their highest plane of old work, directly related to the new material to be considered. If they move from this position with ease and freedom, it is good evidence that the lower phases of the subject are well organized in their minds. If they do not show a mastery here, it is well to descend...
Page 123 - An individual sold two gold pencils, at $6 each ; on one he gained 20$, and on the other he lost 20$. Did he gain or lose, and how much ? 14.
Page 120 - A, B, and C can do a certain piece of work in 10 days ; how long will it take each to do it, if A does 1^ times as much as B, and B does | as much as C ? Ans.
Page 111 - A person, at the time he was married, was 3 times as old as his wife ; but after they had lived together 15 years, he was only twice as old ; what were their ages on their wedding day ? Ans.
Page 113 - Ellen, and the sum of their ages is 30 years ; what is the age of each ? 8. A and B are 36 rods apart, and travel towards each other ; how far will each travel before they meet, provided A travels twice as fast as B ? 9. What number must be added to twice itself, that the sum may be 57 ? 10. A, after spending | of all his money, and -§• of th...
Page 107 - A and B can do a piece of work in 4 days, B and C in 5J days, and A and C in 44 days.
Page 77 - Cube of a Number is the product obtained by multiplying the number by itself, and that product by the number again; thus, the cube of 14 - 14