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5 times 2 are 10

5 times 3 are 15

5 times 4 are 20 5 times 5 are 25 5 times 6 are 30 6 times 1 are 6 6 times 2 are 12

6 times 3 are 18

6 times 4 are 24

6 times 5 are 30 6 times 6 are 36

5 times 8 are 40 5 times 9 are 45 5 times 10 are 50 5 times 11 are 55 5 times 12 are 60 6 times 7 are 42 6 times 8 are 48 6 times 9 are 54 6 times 10 are 60 6 times 11 are 66 6 times 12 are 72

MENTAL EXERCISES.

1. If a man can cradle 3 acres of wheat in one day, how many acres can he cradle in 5 days. ANS. 15 acres.

Why 15 acres? Because, if he can cradle 3 acres in 1 day, in 5 days he can cradle 5 times 3 acres; 5 times 3 acres are 15 acres. can cradle 15 acres.

Therefore, in 5 days he

2. At 2 dollars a day, how much will a man earn in 5 days? Why? In 6 days? Why?

3. What will 5 barrels of flour cost, at 4 dollars a barrel ? What will 6 barrels cost? Why?

4. If a horse travel 6 miles in an hour, how far will he travel in 5 hours? In 6 hours? Why?

5. A farmer bought a plow for 5 dollars; what would 5 plows cost, at the same rate? What would 6 plows cost? Why?

6. There are 7 days in a week; how many days in 5 weeks? In 6 weeks? Why?

7. What will 5 yards of satinet cost, at 7 shillings a yard? What will 6 yards cost? Why?

8. At 8 cents apiece, how much will 5 melons come to? How much will 6 melons come to? Why?

9. How far will a boat sail in 5 hours, at the rate of 9 miles an hour? How far in 6 hours?

Why?

10. When hay is worth 10 dollars a ton, what will 5 tons cost? What will 6 tons cost? Why?

11. How many yards are there in 5 pieces of cloth, there being 12 yards in each piece? How many yards in 6 pieces? Why?

12. How much will 5 pounds of honey cost, at 11 cents a pound? How much will 6 pounds cost? Why? 13. Which is the most, 6 times 6 or 4 times 9?

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MENTAL EXERCISES.

1. Milford bought 7 oranges, at 3 cents apiece; how many cents did they cost him? ANS. 21 cents.

Why 21 cents? Because, if 1 orange cost 3 cents, 7 oranges will cost 7 times 3 cents; 7 times 3 cents are 21 cents. Therefore, the oranges cost him 21

cents.

2. If a market-woman receive 2 dollars a day for fruit, how many dollars will she receive in 7 days? Why? In 8 days? Why?

3. Elias paid 4 shillings for a knife; what would 7 knives cost, at the same rate? What would 8 knives cost? Why?

4. When Daniel uses 6 sheets of paper in a week, how many sheets will he use in 7 weeks? How many in 8 weeks? Why?

5. What will 7 hats cost, at 5 dollars apiece? What will 8 hats cost, at the same price? Why?

6. If a mill grind 7 bushels of wheat in one hour, how many bushels will it grind in 7 hours? How many in 8 hours? Why?

7. In one square yard there are 9 square feet; how many square feet are there in 7 square yards? In 8 square yards? Why?

8. If you write 8 lines each day, how many lines will you write in 7 days? In 8 days? Why? 9. When coffee is worth 10 cents a pound, how much must you pay for 7 pounds? How much for 8 pounds? Why?

10. At 12 dollars a month, how much will a man earn in 7 months? In 8 months? Why?

11. How many are 7 times 11? 7 times 12?

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9 times 2 are 18 9 times 3 are 27 9 times 4 are 36 9 times 5 are 45 9 times 6 are 54 10 times 1 are 10 10 times 2 are 20 10 times 3 are 30 10 times 4 are 40 10 times 5 are 50

10 times 6 are 60

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