WRITTEN EXERCISES.

73.—1. What is the sum of three hundred sixty-five, one thousand six hundred fifty, and three hundred twenty-five?

2. If you have 1600 dollars, and should gain 1734 dollars, how much money would you then have?

3. If you have 3334 dollars, and should lose 2500, how much would you have left?

4. The minuend is 11567 and the subtrahend 7457. What is the difference?

5. The subtrahend is 7457 and the difference 4110. What is the minuend?

6. The difference is 4110 and the minuend is 11567. What is the subtrahend?

7. Reed had 1367 tons of coal; he sold at one time 325 tons and at another 572 tons. How many tons had he then left?

8. I had 3675 dollars, and gained 1320 dollars. If I should pay away 2720 dollars, how much would I have left?

9. How much is 3675-539 added to 363 + 73?

10. How much is the sum of 7867 and 1319, diminished by 4261 ?

74.-1. If John can remove 2 books at one time, how many can he remove at two times?

2. How many are 2 books and 2 books, or 2 times 2 books?

3. If you have 2 cherries, and James has 3 times as many, how many has James?

4. How many are 2 and 2 and 2, or 3 times 2?

5. If you have 4 fingers on each hand, how many have you on both hands?

6. John has 3 blocks, and his brother has 3 times as many. How many has his brother?

7. If you should get 3 merit-marks each day, how many would you get in 4 days?

8. How many are 4 times 3? 3 times 4?

9. On one twig there are 4 cherries; how many cherries are there on 2 similar twigs?

10. How many cents are 3 times 4 cents?

11. There are four pecks in one bushel; how many pecks are there in 4 bushels ?

12. When 6 cents are paid for 1 quart of milk, how much must be paid for 2 quarts?

13. How many are 2 times 6? How many cents are 2 times 6 cents?

14. How many are 5 and 5 and 5, or 3 times 5?

*15. At the rate of 5 dollars a week, how many dollars can be earned in 3 weeks?

75.-1. How many are once 1? Once 2? Once 3 ? Once 4?

2. How many are 2 times 1? 2 times 2? 3? 2 times 4? 2 times 5?

3. How many are 2 times 6? 2 times 7? 8? 2 times 9? 2 times 10?

2 times

2 times

4. How many are 3 times 1? 3 times 2? 3 times

3? 3 times 4?

5. How many

8? 3 times 9?

3 times 5?

are 3 times 6? 3 times 7? 3 times

3 times 10?

6. How many are 4 times 1? 4 times 2? 4 times 3? 4 times 4? 4 times 5?

7. How many are 4 times 6? 4 times 7? 4 times 8? 4 times 9? 4 times 10?

8. How many are 5 times 1? 5 times 2? 5 times 3? 5 times 4? 5 times 5?

9. How many are 5 times 6? 5 times 7? 8? 5 times 9? 5 times 10?

5 times

10. How many are 2 times 2? 3 times 2? 2? 5 times 2?

4 times

11. How many are 6 times 2?

7 times 2?

8 times

2? 9 times 2? 10 times 2?

12. How many are 2 times 3? 3 times 3?

4 times

3? 5 times 3?

13. How many are 6 times 3? 7 times 3? 3? 9 times 3? 10 times 3?

8 times

56 7

66

64 8

66

72 9

66

96 81 9" 90 9" 99 9 "108 80 10" 90 10 "100 10 "110 10 "120 66 99 11 11011 "121 11 "132 8811 96 12 "108 12 "120 12 "132 12 "144

66

63 7" 70 7" 77 7 84 72 8 " 80 8 88 8

66

DEFINITIONS.

76. Multiplication is the process of taking one of two numbers as many times as there are units in the other. 77. The Multiplicand is the number to be multiplied. 78. The Multiplier is the number by which to multiply. 79. The Product is the result of the multiplication. The multiplicand and multiplier are Factors of the product. 80. The Sign of Multiplication is an oblique cross, X, and is read times or multiplied by.

Thus, 9 X 8 is read nine multiplied by eight, or eight times nine.

MENTAL EXERCISES.

81.-1. What is the product of 9 by 7? Of 5 by 4? 2. What is the product of 7 by 5? Of 6 by 3? 3. If 1 orange cost 6 cents, how many cents will 8 oranges cost?

SOLUTION.-If 1 orange cost 6 cents, 8 oranges will cost 8 times 6 cents, which are 48 cents.

4. If you can earn 4 dollars in 1 week, how many dollars can you earn in 6 weeks?

5. What will 8 pairs of boots cost at 7 dollars a pair? 6. How many trees in 9 rows of 6 trees each ?

7. How many yards are 7 times 10 yards?

8. At 4 dollars each, what will 11 barrels of apples cost?

9. James had 12 chickens, and his brother 6 times as many. How many chickens had his brother?

10. At 7 cents each, what will 9 oranges cost? 11. At 9 cents each, what will 9 pencils cost?