7. What is the sign of addition? What is it called?

24. Count by 7's from 0 to 84.

25. In the same way count by 3's, 5's, 8's, 9's.

1. What is subtraction?

2. What is the sign of subtraction? What is it called?

3. What are the terms of subtraction called?

4. What is the result of subtraction called?

5. 1789. In this example name each term.

6. 32

17 10

Subtract:

7. 41

26

In examples like this think 32 — 7 = 25, 25

-

12. How do you prove an example in subtraction? 13. By what process do you find the difference between two numbers?

Find the difference between the following numbers :

In the following examples make change when the value

of the purchase and money offered is given:

31. Count backward by 7's from 86 to 2.

32. Count backward by 5's from 59 to 4.

33. What number subtracted from 32 gives 15?

34. In the last example name the subtrahend. Name the minuend. Name the difference.

You are supposed to be familiar with the reading and writing of numbers. 1. Name the ten figures, called digits, used in the Arabic system of notation.

2. Why do we call this system a decimal system?

3. What is numeration?

4. On what does the value of any figure depend?

5. What change is made in the value of a figure if it is moved one place to the left? One place to the right?

6. In the number 4236, for what does the 6 stand? For what does the 3 stand? The 2? The 4?

7. Name the first four periods in order.

8. You will seldom use a larger number, yet it may be well to learn the names of the higher periods, viz.: trillions, quadrillions, quintillions, sextillions, septillions, octillions, nonillions, decillions.

9. In a number like 26.3, what do we call the period (.)?

16. Notice the similarity of sound when reading the fol

lowing:

101,000, one hundred one thousand.

.101, one hundred one thousandths.

100.001, one hundred and one thousandth.

Write the following in figures :

17. Two thousand two and two thousandths.

18. Two hundred thousand and two hundred-thousandths. 19. Two thousand and two thousandths.

20. Two hundred two thousandths.

21. Two hundred and two thousandths.

22. Two million, two thousand two and two thousandths.

1. a. 6 × 7 = 42. b. 8 ft. x 9 72 ft.

=

72 ft. Of what is X the sign? How is it read in a? How is it read in b? 2. What is multiplication?

3. What is the name of the number that is to be repeated or multiplied?

4. What is the name of the number by which we multiply?

5. What is the result of multiplication called?

6. In example 1, state the multiplicand and multiplier in each case.

7. What is an abstract number? A concrete number? 8. Which term in multiplication must always be an abstract number?

14. State the rule for multiplying any number by 10. By 100. By 1000.

25. How do you prove an example in multiplication?

26. State a rule for multiplying a number by 50. Multiply each of the following by 50: 12; 204; 72; 86.

27. State a rule for multiplying a number by 25. Multiply each of the following by 25: 36; 24; 404; 16. 28. State a rule for multiplying by 333. of the following by 333; 9; 27; 15; 360.

Multiply each

In 1908 the appropriations for the different depart

ments in a certain city were as follows:

1. Find the total amount of the appropriations.

2. How much more was allowed for education than for police and fire protection?

3. How much more was appropriated for public works than for the interest on the debt?

4. How much less was appropriated for lighting than for charities?

5. How much more did the park commissioners receive than the board of health?

6. Find the total area and total population of these states.

7. How much larger is the population of New York than the total population of the New England States?

8. Make 10 examples for the class to solve based on these statistics.