1. In each problem add upward, then downward, then

2. Add these numbers; subtract them, and multiply

1. What is the cost of 6 feet of molding, if 9 feet cost 81 cents?

2. In the front of a building there are 72 windows. In each story there are 9 windows. How many stories high is the building?

3. Jane's grandfather is 72 years of age, and Jane is one-ninth as old. In how many years will she be 17?

4. How much more than $36 should a man have in order to buy 9 tons of coal at $5 a ton?

5. Find the cost of 17 barrels of rice at $9 a barrel. 6. I had 9 dozen buttons and used 88 buttons. How many were left? How much did I pay for all of them at 6¢ a dozen?

7. A steamer sails 298 miles a day. How far will it sail in 9 days?

8. I bought 12 barrels of flour at $9 a barrel, and sold the flour for $95. How much did I lose?

9. Alice has $11 and her father has 9 times as much and $8 more. How many dollars have both?

10. A certain line of telegraph costs $985 a mile. How much would 9 miles cost?

11. What is a man's income in 9 years at $2385 a year? 12. A gentleman earns $9 a day for 8 days, and spends $8 a day for 8 days. How much has he left?

13. There are 322 rails to the mile of railroad track. How many rails in 9 miles of track?

14. There are 9 equal lots fronting on a street 378 feet long. How wide is each lot?

15. A boy takes 9 subscriptions to the Youth's Companion at $1.75 each. How much money does he receive for them all?

APPLICATION OF THE NINES

1. How many square feet in a square yard?

119

2. A blackboard is 4 feet wide and 9. feet long. How many square feet in it? How many square yards?

3. Each window in a building contains 9 square feet. In 6 such windows there are how many square feet? How many square yards?

4. One end of a desk is 9 feet from the wall, the other end is 7 feet from the opposite wall. The desk is 3 feet and 6 inches long. How far is it from one side of the room to the other?

5. John has 83¢.

How many 9¢ books can he buy,

and how much money will he have left?

6. A boy pays 12¢ for 3 pencils. At the same rate what will 79 pencils cost?

7. In each of 9 cars there are 57 persons. How many persons in the 9 cars?

8. Read each line across the page and answer the questions. Then read the columns from the top downward.

1LB

8oz

1oz

20z

Answer all you can orally.

1. Review page 50 as oral work.

2. How many ounces are there in 1 pound? In 2 pounds? In 3 pounds? In 4 pounds? In 6 pounds? 3. What part of 1 pound is 8 ounces? 4 ounces? 2 ounces? 12 ounces?

4. Which weight shown on this page equals Which one equals of a pound? Which,

5. Which 2 weights together equal Which 2 together equal of a pound?

a pound? of a pound? of a pound?

6. The 8-ounce weight equals what part of 2 pounds? Of 3 pounds? Of 6 pounds?

7. The 4-ounce weight equals what part of 2 pounds? Of 3 pounds?

8. The 8-ounce and the 4-ounce weight together equal what part of 3 pounds? Of 6 pounds?

9. How many pounds in a hundredweight?

10. How many hundredweights are there in 200 pounds? In 400 pounds?

11. How many pounds are there in of a hundredweight? In of a hundredweight?

12. If a grocer has different weights, as shown in the

picture, which ones may he use in weighing

of tea? Which, in weighing of a pound?

5

1? ? ? ? ? 16? 11? ??

16

6

of a pound

of a pound?

13. Which different weights may he use in weighing 11 pounds of rice? In weighing 13 pounds? 1 pounds? 11 pounds? 13 pounds?