Arithmetic Made Easy to Children: Being a Collection of Useful and Familiar Examples Methodically Arranged Under Their Respective Heads

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Kimber, Conrad, & Company, 1805 - 132 σελίδες
 

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Σελίδα 113 - If 145 men can make a wall 32 feet high and 40 feet long in 8 days ; in how many days can 68 men build a wall •28 feet high of the same length...
Σελίδα 108 - How many yards of carpeting that is half a yard wide, will cover a room that is 30 feet long and 18 feet wide ? Ans. 120 yards 71.
Σελίδα 53 - ... when the lower number is greater than the upper, take it from as many of that denomination as will make one of the next greater, and to the remainder add the upper number; set down the result, and. carry one to the next, &c.
Σελίδα 111 - If 7 men can reap 84 acres of wheat in 12 days, how many men can reap 100 acres in 5 days ? 40. If 7 men can build 36 rods of wall in 3 days, how many rods can 20 men build in 14 days ? , 41.
Σελίδα 107 - ... can do in 24 days? Ans. 8. 5. If 6 reapers can reap a field of wheat in 12 days, in what time could 24 do it? Ans. 3 days. 6. If 100 dollars in 12 months bring 6 dollars interest, what sum will bring the same in 8 months?
Σελίδα 76 - 1 perch, . . P. 40 perches " 1 rood, . . . R. 4 roods " 1 acre, . . . A. 640 acres
Σελίδα 71 - Silver, &c.). 24 grains = 1 pennyweight (dwt.) 20 pennyweight» = 1 ounce (oz. ) 12 ounces = 1 pound (lb.) — 5700 grain
Σελίδα 107 - How many men must be employed to finish a piece of . work in 15 days, which 5 men can do in 24 days ? answer 8 men.
Σελίδα 112 - PROPORTION. 1. If 7 men reap 84 acres of wheat in 12 days, how many men can reap 100 acres in 5 days ? Ans. 20 men. 2. If 4 dollars be the hire of 8 men for 3 days, how many days must 20 men work for 40 dollars ? Ans. 12. 3. If 4^ men have $3.20 for 3 days work, how many men will earn $12.80 in 16 days? Ans. 3 men. 4. If 4 reapers have 12 dollars for 3 days work, how many will earn 48 dollars in 16 days? Ans. 3. 5. If 100L.
Σελίδα 7 - ARITHMETIC. ARITHMETIC is the art of computing by numbers. It has five principal rules for its operations; viz. numera,tion, addition, subtraction, multiplication» and division. NUMERATION. Numeration teaches to -write or express numbers by figures, and to read numbers thus written or expressed. In treating of numbers the following terms are employed : viz. unit, ten, hundred, thousand, and million ,• as also...

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