First Steps in Numbers: Designed to Lead the Pupil to a Thorough, Practical Acquaintance with the Elementary Operations on Numbers and the Application of the Decimal System

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Benjamin B. Mussey, 1849 - 100 páginas
 

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Página 38 - We have seen that multiplying by a whole number is taking the multiplicand as many times as there are units in the multiplier.
Página ii - In the Clerk's Office of the District Court of the District of Massachusetts. STEREOTYPED BY GEORGE A. CURTIS; NEW ENGLAND TYPE AND STEREOTYPE FOUNDRY.
Página 97 - When a=30 and b= 14 ? 5. If a barrel of apples costs $3, what will 3 barrels cost? 4 barrels? 12 barrels? n barrels? 6. If there are 4 rows of apple-trees in an orchard and 8 trees in each row, how many trees are there in the orchard? How many trees are there in an orchard with b rows of 8 trees each ? How many trees are there in an orchard with b rows of a trees each? How is the product of a and b written ? 7.
Página 45 - Drill should be given upon these and similar problems until the pupils are familiar with the language forms used in the analysis. The written form should be taken up after the oral form has been mastered. Apply these forms to similar problems on the succeeding pages of the text. 151.
Página 47 - ... 5 are 25 5 times 11 are 55 5 times 6 are 30 5 times 12 are 60 5. If one book costs 4 cents, how many cents must I pay for 5 books? 6. If one line of printing contains 7 words, how many words are there in 5 such lines? 7. If a man can walk six miles in one hour, how far can he walk in 5 hours? 8. If in one quart there are 2 pints, how many pints are there in 5 quarts? 9. Write the table of five times on the slate or blackboard. using X and =. WRITTEN EXERCISES. 31 42 64 324 603 240 304 906 _5__5_5__5...
Página 43 - ... the price of the pencils were 4 cents apiece, how many could you buy for all the money ? 3. How many times is 4 contained in 16 ? 4. If 4 horses are required to draw one wagon, how many wagons might be drawn by 20 horses ? 5. How many times 4 in 20 ? How many a/re 5 times 4? 6. If a man can travel 4 miles in one hour, how many hours will it take him to travel 12 miles ? 7. How many times 4 in 12 ? How many are 3 times 4? 8. How many yards of broadcloth, that is sold at 7 dol lars a yard, can...
Página 42 - LXXVn. 1. Sophia has one rose, and Maria has 3 times as many ; how many roses has Maria ? 2. Maria has 3 pinks, Sophia has only one third as many ; how many pinks has Sophia ? 3. In one quart there are 2 pints ; how many pints are there in 3 quarts? 4. There are 2 pints in one quart ; how many quarts are there in 6 pints? 5. There are 3 feet in one yard ; how many feet are there in 3 yards ? 6. In one yard there are 3 feet ; how many yards are there in 9 feet ? 7. There are 4 farthings in one penny...
Página 91 - ... the given fractions are expressed in their lowest terms, such a denominator must be chosen as will contain each of the given denominators. A common denominator can always be obtained by multiplying the given denominators together, but it will not always be the least one that can be used. 9. Reduce ^ and f to a common denominator. 10. Reduce £, £, and £ to a common denominator. 11. Change | and ^ 2 to a common denominator.
Página 45 - ... he received, he bought some papers at 2 cents apiece ; how many papers did he buy ? 16.
Página 44 - Saba bought 4 yards of ribbon at 3 cents a yard ; how much did it cost her?

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