If preferred, put this and the following diagrams upon the board for oral work.

1 2

4

32. 1. Frank had 12 hens. He bought 3 more. How many has he now?

2. On Monday he found 4 eggs in one nest and 7 eggs in another. How many did he find in the 2 nests?

3. On Tuesday he found 5 eggs in one nest and 3 in another. How many eggs did he find on Tuesday?

4. How many eggs did he find on Monday and Tuesday?

5. He sold 1 doz. eggs on Wednesday. How many were left?

6. His sister used 3 eggs on Thursday to make a cake. How many had he then?

7. On Friday he found 8 eggs in one nest and 6 in the other. How many did he find in the nests?

8. He sold 6 eggs on Friday. How many had he left?

9. On Saturday he found 8 eggs. eggs did he then have?

10. Make other problems like these.

How many

A MEASURE IN COUNTING

12 units or things = 1 dozen (doz.)

READING AND WRITING NUMBERS TO 30

Oral Exercise

33. 1. How many splints in Twenty is written 20.

2. How many splints in Twenty-one is written 21.

3. Which figure in 21 splints

stands for 1 splint? Which stands for 20 splints? 4. No matter what objects are counted, we may say that in 21 the 1 stands for a one, the 2 stands for 2 tens.

5. In 22, which figure stands for 2 ones? Which stands for 2 tens?

6. Read the following numbers:

7. What does the figure to the right stand for, in 26, 27, 24? In each number, what does the figure to the left stand for?

8. Which is more, 12 or 21?

Counting Oral

34. 1. Count by twos up to 24, thus: 2, 4,

6,

and so on.

2. Count by threes up to 27, thus: 3, 6, 9, and

so on.

3. Count by fours up to 29, beginning with 1. 4. Count by fours up to 26, beginning with 2. 5. Count by fours up to 27, beginning with 3. 6. Count by fives up to 26, beginning with 1. 7. Count by 2's from 20 backward.

8. Count by 3's from 21 backward.

1. Add at sight the two numbers in each space. 2. Subtract the lower number from the upper in each space.

3. Give answers by lines, then by columns. Do this rapidly.

Exercise in Counting

37. 1. Count by 2's from 30 down to 0. 2. Count by 3's to 27, beginning with 3. 3. Count by 4's to 24, beginning with 4.