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" If 2 men start from the same place and travel in opposite directions, one at the rate of 4 miles an hour, and the other at the rate of 5 miles an hour, how far apart will they be at the end of 1 hour ? At the end of 2 hours ? 5 hours? "
Primary Arithmetic, Or, Mental Operations in Numbers: Being an Introduction ... - Page 54
by Daniel Adams - 1848 - 180 pages
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First lessons in arithmetic: on the plan of Pestalozzi, with some improvements

Warren Colburn - Arithmetic - 1825 - 172 pages
...travel different ways ; one travels two miles in an hour; the other travels three miles in an hourfc how far apart will they be at the end of one hour 1 How far at the end of two hours 1 How far at the end of three hours ? How far at the end of four...
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Intellectual Arithmetic: Upon the Inductive Method of Instruction

Warren Colburn - Arithmetic - 1849 - 160 pages
...travel different ways ; one travels two miles in an hour ; the other travels three miles in an hear ; how far apart will they be at the end of one hour 1 How far at the end of two hours ? How far at the end of three hours ? How far at the end of four...
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Colburn's First Lessons: Intellectual Arithmetic, Upon the Inductive Method ...

Warren Colburn - Mental arithmetic - 1828 - 160 pages
...place and travel different ways ; one travels two miles in an hour ; the other travels three miles in an hour ; how far apart will they be at the end of one hour ? How fur at the end of two hours ? How far at the end of three hours 1 How far at the end of four...
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Intellectual Arithmetic: Upon the Inductive Method of Instruction

Warren Colburn - Mental arithmetic - 1829 - 172 pages
...palace and travel different ways ; one travel* tavo miles in an hour ; the other travels three miles in an hour ; how far apart will they be at the end of one houi ? How far at the end of two hours 1 How far at the end of three hours ? How far at the end of...
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Pupil's Arith

Seth Davis - 1830
...from the same place, and travel different ways ; one travels two miles an hour, and the other three : How far apart will they be at the end of one hour ? — How far at the end of two hours ? — Of three hours ? — How far at the end of four hours ?...
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Mental Arithmetic Upon the Inductive Plan: For Beginners

Benjamin Greenleaf - Mental arithmetic - 1846 - 72 pages
...Lowell, and travel the same way ; A travels at the rate of 4 miles an hour, and В at the rate of 9 miles an hour ; how far apart will they be at the end of one hour ? How far at the end of 2 hours? 4 hours? 6 hours? 7 'hours ? 10. Six less two are how many? 11. Five...
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Intellectural Arithmetic, Upon the Inductive Method of Instruction

Warren Colburn - Arithmetic - 1847 - 160 pages
...place and travel different ways ; one travels two miles in an hour ; the other travels three miles in an hour ; how far apart will they be at the end of one hour ? How far at the end of two hours 1 How far,at the end of three hours 1 How far at the end of four...
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The Child's First Book in Arithmetic

Nelson M. Holbrook - Arithmetic - 1849 - 112 pages
...place, and travel the same way, one at the rate of 3 miles an hour, and the other at the rate of 5 miles an hour, how far apart will they be at the end of 1 hour ? At the end of 3 hpurs ? 5 hours ? 7 hours ? 9 hours ? 12 hours ? 5. A family of 5 persons...
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The American Intellectual Arithmetic: Designed for the Use of Schools and ...

John Fair Stoddard - Arithmetic - 1849 - 164 pages
...men are 50 miles apart, and approach each other;—one at the rate of 2 miles an hour, the other 3 miles an hour; how far apart will they be at the end of 5 hours ? 65. A man earned 80 cents a day, and paid 50 cents a day for his board and washing; how much...
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Colburn's First Lessons: Intellectual Arithmetic, Upon the Inductive Method ...

Warren Colburn - Mathematics - 1849 - 160 pages
...place and travel different ways ; one travels two miles in an hour; the other travels three miles in an hour; how far apart will they be at the end of one hoar 1 How far at the end of two hours ? How far at the end of three hours 1 How far at the end of...
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