# A Key to the Standard Arithmetic and the Mental Arithmetic

American Book Company, 1901 - Arithmetic - 272 pages

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### Contents

 Section 1 3 Section 2 4 Section 3 5 Section 4 20 Section 5 21 Section 6 24 Section 7 31 Section 8 36
 Section 19 106 Section 20 109 Section 21 112 Section 22 115 Section 23 130 Section 24 158 Section 25 165 Section 26 170

 Section 9 39 Section 10 48 Section 11 51 Section 12 56 Section 13 64 Section 14 73 Section 15 87 Section 16 88 Section 17 94 Section 18 97
 Section 27 171 Section 28 173 Section 29 175 Section 30 178 Section 31 180 Section 32 181 Section 33 199 Section 34 28 Section 35 29 Copyright

### Popular passages

Page 53 - A person, being asked the time of day, replied, " The time past noon is equal to ^ of the time to midnight.
Page 5 - 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 5 - J of it in 1 day, how much would both do in a day ? How long would it take them both together to do the whole ? 147.
Page 161 - The volumes of similar solids are to each other as the cubes of their like dimensions.
Page 53 - ... f of the time to midnight equals the time from noon to midnight, which is 12 hours; consequently £ of the time to midnight is f hours, and the time to midnight is -^ hours, equal to 7£ hours.
Page 5 - What is the interest of 100 and 37 dollars for 2 years 3 months and 20 days ? 144. A can do a piece of work in 2 days ; how much of it can he do in 1 day ? 145. B can do a piece of work in 4 days; how much of it can he do in 1 day? 146. If A can do £ of a piece of work in 1 day, and B can do | of it in 1 day, how much would both do in a day...
Page 149 - The areas of similar surfaces are to each other as the squares of their like dimensions.
Page 140 - The head of a fish is 7 inches long, the tail is as long as the head and |- of the body, and the body is as long as the head and tail ; what is the length of the fish ? 9.
Page 30 - The amount of a certain principal for 5 years at a certain rate is \$665, and for 8 years at the same rate it is 1779.