Study the above until you can give the results without hesitation.

Give the products in the above exercises from right to left, adding 1, 2, and 3 to each product, thus: 15, 16; 12, 13; 12, 13; etc.

DIVISION-LESSON B

123. 1. Count by 3's to 18; by 2's to 24; by 4's to 20; by 5's to 30.

2. Arrange 6 books to show that 2 books are of 6 books.

3. One third of 6 books is - books. Two thirds of 6 books are

books.

4. Draw oblongs to represent 9 books. One third of 9 books is books. Two thirds of 9 books are

books.

5. Show of 12 squares. Show of 12 squares.

6. Three fourths of 12 squares are —

7. Show of 12 circles. Show

124. Read and memorize :

squares.

of 12 circles.

5)10

3)12 5)15 4)12 3)15 6)12 2)10 2)12

126. Study Exercises.

3)12 5)15 5)15 4)12 3)15 6)12 2)10 2)12 5)10

Study the above until you can give the quotients without hesitation.

1. 2)12 This means: How many 2's are there in 12? Or, What is of 12? The answer is —. 2. 2)$12 This means: What is of $12? The answer is

3. $2)$12 This means: How many $2 are there in $12? The answer is -.

127. Read and find quotients:

1. 2)2648 4)8048 4)1248 2)1046

2. 6)1206 5)1050 5)1005 4)1208

128. Written Exercises.

e

$3)$1296

3)6012 ft.

6. of a pie + of a pie is of a pie more than a whole pie.

7. of a pie + of a pie is 1 of a pie less than a whole pie.

ADDITION-LESSON H

132. 1. Memorize the following:

2. Give a number story suggested by each.

3. What two combinations in this lesson give 11 as a sum?

4. What must be added to $5 to make $14?

5. Name another combination whose sum is 14.

6. The sum of 9 and 9 is 18; of 9 and 8 is 17; of 9 and 7 is 16. When a number is added to 9, the sum ends in a figure one less than that added to 9.

7. A girl has 4 books of poems and 7 story books. How many books has she in all?

133. Oral Exercises.

The sign

=

between two quantities shows that they are equal in amount.

4+5=9. This means that the sum of 4 and 5 is equal to 9.

4+5=6+3. This means that the sum of 4 and 5 is equal to the sum of 6 and 3.

134. Supply the number that should stand in place of x.

1. 7+4=3+x. 3. 9+7=8+x. 5. 7+8=6+x. 2. 9+5=8+x. 4. 6+5=4+x. 6. 5+9=7+x.