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7. A student had 4 books and bought 7 more. How many books had he then?

8. If there are 8 pears on one tree and 7 on another, how many on both trees?

9. How many words did Margaret attempt to spell if she misspelled 3 and spelled 9 correctly?

10. How many digits in each of these numbers: Ten, eleven, twelve, thirteen, fourteen, fifteen?

11. What does the sign + mean? What does it require you to find?

LESSON V.

1. If 7 roses are on a bush and Irene cuts off 4, how many will be on the bush?

Solution. There will be on the bush the difference between 7 roses and 4 roses, which is 3 roses.

2. James had 12 marbles and lost 5. How many did he then have?

3. If John has 15 cents and Harry has 8 cents, how much more has John than Harry?

4. If a boy has 4 cents, how many must he get that he may have 12 cents?

5. Percy had 13 apples and gave his sister 5. How many did he then have?

6. Eight of the 17 apples that were on a tree dropped off. How many remained on the tree?

7. If Harry had 9 cents more he would have 17 cents. How many cents has Harry?

8. In two boxes there are 14 books, and in one of the

boxes there are 6 books. How many are in the other? Rapid work for blackboard drill :

[blocks in formation]

TO THE TEACHER.-The teacher will place these and similar combinations on the blackboard; then, pointing to each combination, say "add." The pupil will name promptly the sum of the combination. The teacher will then point to the first figure in the combination and say "subtract." Then point to the second figure. Drill pupils on these and similar combinations until pupils give results unhesitatingly.

LESSON VI.

1. Name promptly the sums as indicated:

43. 36. 74. 76. 8+ 7. 98.

[blocks in formation]

NOTE. The teacher will read slowly and distinctly, and then name a

member of the class to give the result.

[blocks in formation]

4. Combination exercises for rapid work:

4 plus 3 less 2 plus 5.
3 plus 5 plus 6 less 7.
8 less 5 plus 4 plus 6.
5 plus 8 less 6 plus 4.
7 plus 9 less 8 less 3.
5 plus 5 plus 5 less 8.

14 less 9 plus 5 less 3.
13 less 5 less 4 plus 6.
6 plus 6 less 5 plus 5.
16 less 9 plus 7 less 6.
17 less 8 plus 6 less 8.
6 plus 6 plus 6 less 9.

LESSON VII.

The Sign of Equality is two parallel lines,=.

read "equals,"

equals," or "is equal to."

"Three plus two equals five."

It is

325, is read

1. A merchant sold 7 barrels of flour to one man, and 5 to another man. How many barrels did he sell to

both?

Solution.-7 barrels + 5 barrels 12 barrels. Therefore, he sold 12 barrels.

2. I paid 9 cents for a book, and 4 cents for a pencil. How much did I pay for both?

3. A farmer paid 9 dollars for a plough and 8 dollars for a harrow. How much did he pay for both?

4. A baker bought 8 barrels of flour from one miller and 8 more from another. How many barrels from both?

5. Frederick gave 6 cents for a purse, and had 7 cents left to put into it. How many cents had he at first?

6. A farmer sold 5 cows, and then had 6 cows left. How many cows had he at first?

7. If you receive 9 dollars from one man and 5 from another, how many dollars do you receive?

8. A class contains 7 studious boys and 5 idlers. How many boys in the class?

9. A class consists of 6 small boys and 5 large boys. How many boys in the class?

10. In a field 8 sheep are standing up and 6 lying down. How many sheep in all?

11. Mary is 7 years old and her brother is 2 years older. How old is her brother?

LESSON VIII.

Subtraction is the process of finding the difference between two like numbers.

The Sign of Subtraction is a short horizontal line, It is called "minus," and when placed between two numbers it means that the number following it is to be taken from that which precedes it. The expression 8 - 5 = 3, is read "Eight minus five equals three."

1. If Emily has 13 cents and Harry has 7 cents, how many more cents has Emily than Harry?

Solution.-13 cents

7 cents =

Emily has 6 cents more than Harry.

6 cents. Therefore,

2. Oscar wants to buy a ball for 15 cents, but he has only 9 cents. How many cents does he need?

3. Julia bought 7 cents' worth of paper and gave the shopkeeper 10 cents. How much change did she get? 4. If 16 birds are sitting on the fence and 7 fly away, how many remain ?

5. John is 14 miles from home.

After walking 6

miles, how far has he to walk to reach home?
6. Roy had 11 marbles and lost 4.
he then have ?

How many did

7. Anna spent 18 cents for a book and 9 cents for a slate. How much less did she pay for the slate than for the book?

8. Harry was given 12 words to spell. If he spelled 8 correctly, how many did he miss?

9. A boy having 17 cents spent 8 cents for peaches. How many cents had he left?

LESSON IX.

1. Louis had 9 marbles and lost 4 of them. How many had he left?

Solution. He had left 9 marbles 4 marbles, or 5 marbles.

2. John has 10 cents and Mary has 6. How many more has John than Mary?

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