68. State how to subtract two similar fractions. 69. What is the difference between and ? 70. State how to subtract two fractions with unlike 95. Tell how to multiply a fraction by a whole number. Name at sight the product: 102. Tell how to multiply a whole number by a 109. Tell how to find the product of two fractions. Name at sight the product: IIO. X III. × I12. 114. X 5 115. × × 113. x3 116. × 117. 8×18 Multiply, expressing the answer in the simplest form: 124. Tell how to multiply a mixed number by a 139. Tell how to divide a fraction by a whole number. 148. Tell how to find the quotient of two fractions; also how to find the quotient if a whole number or a mixed number is to be divided by a fraction. 149. Name at sight the quotients: + 1 ÷ 1; 1÷}; 1 ÷ 18; 1+11⁄2· 150. Name at sight the quotients: 3÷ 3+1; 3+ 1; 5+1; 7÷ 7 ÷ 10. 151. Name at sight the quotients: 1+; 1+1; 1÷§; 1+3. 152. Name at sight the quotients: 3 2; 3; 5÷10; 4÷ ; Divide: 163. A woman who charges $12 a day for board should charge how much for 15 days' board? 164. When coal costs $5 a ton, what part of a ton can be bought for $1? $21? $14? 165. How many yards of cloth can be bought for $21 at $a yard? 166. If 4 lb. of spices were put up in 16 equal packages, what was the weight of each package? 167. When eggs are selling at 30% a dozen, what is the price per score? 168. What is the distance around a tree if a string 13 yards long will reach three times around it? 169. A lady paid 6 cents for of a yard of muslin; what was the price per yard? 170. If 24 bu. of potatoes were raised on of an acre, what was the yield per acre? 171. If of a bushel of oats weighs 24 pounds, what does a bushel weigh? 172. After spending 12 cents, a boy finds he has spent of his money; how much money had he? 173. A man, after walking 8 miles, finds he has yet of his journey to go; how long is his journey? 174. If the distance around a carriage wheel is 7 feet, how many times has it turned in going 1 mile, or 5280 feet? 175. A cubic foot of water weighs 621 lb.; how many cubic feet of water are there in 2 tons of 2000 lb. each? 176. If the cloth for a suit cost $15 at $21 a yard, how many yards were bought for the suit? 177. How many pounds of lard at 111 a pound can be bought for 6 dozen eggs at 12 a dozen? 178. How many times can a bucket holding 21 gallons be filled from a barrel holding 31 gallons? 179. I bought 2 dozen eggs at 20 a dozen and of a pound of dried beef at 24 cents a pound; what was my bill? 180. If 3 yards of ribbon are cut into pieces of a yard long, how many pieces are made? 181. If 2 lb. of cheese can be bought for of a dollar, how many pounds can be bought for of a dollar? 182. A quart of milk weighs about 2 pounds; how many quarts are there in 100 pounds? 183. How long will 4 bushels of oats last a horse which is fed 3 of a bushel a day? 184. A owned of an acre of land and sold of it; what part of an acre had he then? 185. Black tea forms, by weight, of a mixture of black and green tea. There are 24 pounds of green tea in the mixture; what is the weight of the mixture? 186. From an acre on which 21 bushels of seed were sown, the yield is 20 bushels; what is the yield from each bushel of seed? 187. A merchant paid 4 times as much for a pound of coffee as for a pound of sugar, and for both he paid 311 cents; find the cost of each per pound. 188. of the weight of a bushel of corn equals of the weight of a bushel of oats, and the difference of their weights is 24 pounds; find the weight of. a bushel of each. 189. A dealer bought an article for $20 and sold it at a gain of of the cost; find the selling price. 190. The gain made in selling a pair of shoes was $ 13; if this was of the cost, what was the selling price? 191. One pipe can carry off the water in a tank in 6 hours, and another pipe can carry it off in 4 hours; what part of the water can both carry off in an hour? 25 192. There are 2000 pounds in a short ton, which is as heavy as a long ton; how many pounds are there in a long ton? |