Εικόνες σελίδας
PDF
Ηλεκτρ. έκδοση

DENOMINATE NUMBERS.

A bushel of oats weighs 32 lb.
A bushel of wheat weighs 60 lb.
A bu. of corn (shelled) weighs 56 lb.

A bu. of corn (not shelled) weighs 70 lb.* 1. Two bushels of oats weigh 1b.; 5 bu. weigh (a) How much more than 1 ton do 75 bu. of oats weigh? 2. Two bu. of wheat weigh —; 3 bu. weigh

(b) Seventy-five bushels of wheat weigh how much more than two tons ? (c) How much less than three tons ?

3. Two bushels of shelled corn weigh —; 3 bu. weigh

(d) Forty-five bushels of shelled corn weigh how much more than 14 tons ? (e) How much less than 12 tons ? 4. Two bushels of corn (not shelled) weigh

; 3 bushels weigh -; 4 bushels weigh

(f) How much more than three fourths of a ton do 25 bushels of corn (unshelled) weigh? (g) How much less than one ton ?

5. One hundred pounds of oats are bushels and

pounds, or — and 32nds bushels. (h) Five hundred pounds of oats are how many bushels ? (i) How many bushels in one and one half tons of wheat ? (j) How many bushels in two tons of unshelled corn ?

(k)

(1)
(m)

(n) 32 lb.)768 lb. 32 lb.)769 lb. 32 lb.)770 lb. 32 lb.)772 lb,

* Explain to the pupil that the expression “a bushel of corn (not shelled),” means, the amount of unshelled corn required to make 1 bushel of shelled corn.

[ocr errors]
[merged small][graphic]

square feet.

or

square feet.

[ocr errors]

or

1. A 3-foot square (or its equivalent) is called a square yard. It contains

2. A 3-foot cube (or its equivalent) is called a cubic yard. It contains cubic feet. 3. The area of a 4-foot square is

square feet, and

square yards. 4. The solid content of a 4-foot cube is cubic feet, (a) How many cubic yards in a 4-foot cube ? 5. The area of a 5-foot square is and

square yards. 6. The solid content of a 5-foot cube is cubic feet. (b) How many cubic yards in a 5-foot cube? 7. The area of a 6-foot square is

square feet, square yards. 8. The solid content of a 6-foot cube is cubic feet. (©) How many cubic yards in a 6-foot cube? 9. Find the area of - Find the solid content of (1) A 7-foot square.

(d) A 7-foot cube. (2) An 8-foot square.

(e) An 8-foot cube. (3) A 9-foot square.

(f) A 9-foot cube.

or

RATIO AND PROPORTION.

[ocr errors]

1. One fifth of 25 is

25 is } of 2. One fourth of 21 is

21 is į of 3. One third of 22 is

22 is į of 4. One half of 45 is

45 is į of 5. Three fourths of 24 are

24 is of 6. Three fourths of 36 are

36 is of (a) Find of 96. (b) 96 is of what number? (c) Find ß of 96. (d) 96 is şof what number? (e) Find į of 96. (f) 96 is į of what number?

7. 12 is
8. 18 is
9. 24 is

of 18.
of 24.
of 30.

18 is 24 is 30 is

of 12.
of 18.
of 24.

10. Two thirds of 18 are 1 half of
11. Three fourths of 24 are 2 thirds of
12. Two thirds of 30 are 1 half of

can

earn

(g) One third of 132 is 1 half of what number? (h) Two thirds of 252 are 1 half of what number? (i) Three fourths of 96 are 2 thirds of what number? (j) Two thirds of 96 are 3 fourths of what number? 13. Nine is

of 12. A man as much in 9 days as he can earn in 12 days. If he can earn $40 in 12 days, in 9 days he can earn dollars. (k) If a man can earn $896 in 12 months, how many

dollars can he earn in 9 months ?

(1) If Mr. Conrad's horses consume 726 bushels of oats in a year, how many bushels will be required to feed them 8 months ?

PERCENTAGE.

163 per cent =.16 = 6
144 per cent = .144 = 4.
123 per cent =.124 = 1.

=

(1) 1. 16 per cent of 12 = 2. 144 per cent of 21 = 3. 12) per cent of 16 4. 16 per cent of 18 = 5. 14 per cent of 28 6. 121 per cent of 24 = 7. 50 per cent of 12 8. 25 per cent of 16 9. 20 per cent of 25 10. 33} per cent of 18 =

(2)
12 is 163% of -
21 is 14% of
16 is 12% of
18 is 163% of
28 is 142% of
24 is 121% of
12 is 50% of
16 is 25% of
25 is 20% of
18 is 331% of

=

[merged small][merged small][merged small][merged small][ocr errors]

15. There were 40 pears on a tree; 25% of them fell off;

pears remained on the tree. 16. William sold 7 melons; these were 127% of all the melons h3 raised; he raised melons.

17. Mary had 30 little chickens; a hawk killed five of them; the hawk killed per cent of her chickens. 18. Twelve and one half per cent of $48 is

dollars (a) Find 121 per cent of $992. (b) Find 16; per cent of $852.

PERCENTAGE.

=

(1) 1. 163% of 24 = 163% of 25 = (a) Find 163 per cent of 342; (b) of 343. 2. 123% of 24

121% of 25 (c) Find 123 per cent of 976; (d) of 978. 3. 14%% of 28 = 149% of 30 = (e) Find 144 per cent of 994; (f) of 996.

(2) 4. 5 is 121% of

51 is 123% of (g) 246 is 121% of what ? (h) 2461 is 121% of what? 5. 5 is 144% of

51 is 14% of (i) 351 is 144% of what ? (j) 3564 is 142% of what? 6. 5 is 163% of - 54 is 16% of (k) 239 is 163 % of what ? (1) 241} is 163% of what?

(3) 7. 12 is -% of 24. 12 is

-% of 36. 8. 12 is

-% of 48. 12 is % of 60. 9. 12 is -% of 72. 12 is

-% of 84. 10. 12 is % of 96.

15 is -% of 45.

(1) 11. One per cent of $300 is

2% of $300 = 12. One per cent of $320 is

2% of $320 13. One per cent of $325 is 2% of $325 = 14. One per cent of $342 is

2% of $342 = (m) Find 3% of $342. (n) Find 4% of $342. (0) Find 5% of $342. (p) Find 6% of $342. (q) Find 3% of $536. (r) Find 4% of $536.

« ΠροηγούμενηΣυνέχεια »