32. 7 times 6 tens are how many tens? are how many?

33. 8 times 5 tens are how many tens? are how many?

34. 3 times 9 tens are how many tens? many?

are how

35. 4 times 8 tens are how many tens? are how many?

ADDITION COMBINED WITH MULTIPLICATION.

SECTION VII.

1. 2 tens and 3 tens are how many tens? are how many?

2. 4 tens and 6 tens are how many tens? are how many?

3. 8 tens and 6 tens are how many tens? are how many?

4. 7 tens and 4 tens and 5 tens are how many tens? are how many ?

5. 8 tens and 6 tens and 7 tens are how many tens ? are how many?

6. John has 7 books; Mary has 8 times as many, and Lucy has 3 times as many, as John; how many books has each girl? how many times 7 books, and what number of books, have all together?

7. 2 sevens and 4 sevens and 5 sevens are how many sevens? are how many?

8. Albert has 5 pens; Robert has 5 times as many, and Charles 6 times as many, as Albert; how many times 5 pens, and how many pens, do they all possess?

9. 3 fives and 6 fives and 6 fives are how many fives? are how many?

10. A man purchases 6 times as many sheep, and 3 times as many cows, as he does horses, and the number of horses is 4; how many sheep and cows does he buy? how many times 4 animals, and how many animals, in all?

11. 6 times 4, and 3 times 4, and 2 times 4, are how many times 4? are how many?

12. A laborer has three pieces of work to do; the first he can perform in 8 days, the second in 3 times the time required for the first, and the third in twice the time required for the first and second together; how many times 8 days, and what number of days, will it take to do the whole?

13. Once 8 and 3 times 8 and twice 4 times 8 are how many times 8? are how many?

14. In an orchard there are 9 pear trees, 3 times as many cherry trees, and 5 times as many apple trees; how many cherry trees and how many apple trees are there in the orchard? how many times 9 trees, and how many trees, in all?

15. 3 times 2 nines, +2 times 2 nines are how many nines? are how many?

16. Three men purchase a pleasure-boat; the first pays 11 dollars, the second 6 times as much, and the third 4 times as much, as the first; how many times 11 dollars does the boat cost? how much does the second and the third man pay? what is the cost of the boat?

17. 3 times 11 and 4 times 11 and 5 times 11 are how many times 11? are how many?

18. In a factory there are 4 times as many men and 3 times as many women as children, and the number of children is 12; how many times 12 persons, and what number of persons, are in the factory?

19. 2 times 12, + 3 times 12, + 3 times 12, +4 times 12 are how many times 12? are how many?

MULTIPLICATION.

SECTION VIII.

In performing the examples in this section, the pupil may be taught to multiply the tens and the units separately.

How many are 8 times 18? SOLUTION. 8 times 1 ten are 8 tens; 8 times 8 units are 64 units, or 6 tens and 4 units; 8 tens + 6 tens and 4 units are 14 tens and 4 units. ANS. 144.

1. How many are 2 times 13? 2 times 14? 2 times 15? 2 times 16? 2 times 17? 2 times 18? 2 times 19? 2 times 20?

2. How many are 3 times 13? 3 times 14? 3 times 15? 3 times 16? 3 times 17? 3 times 18? 3 times 19? 3 times 20?

3. How many are 4 times 13? 4 times 14? 4 times 15? 4 times 16? 4 times 17? 4 times 18? 4 times 19? 4 times 20?

4. How many are 5 times 13? 5 times 14? 5 times 15? 5 times 16? 5 times 17? 5 times 18? 5 times 19? 5 times 20?

5. How many are 6 times 13? 6 times 14? 6 times 15? 6 times 16? 6 times 17? 6 times 18? 6 times 19? 6 times 20?

6. How many are 7 times 13? 7 times 14? 7 times 15? 7 times 16? 7 times 17? 7 times 18? 7 times 19? 7 times 20?

7. How many are 8 times 13? 8 times 14? 8 times 15? 8 times 16? 8 times 17? 8 times 18? 8 times 19? 8 times 20?

8. How many are 9 times 13? 9 times 14? 9 times 15? 9 times 16? 9 times 17? 9 times 18? 9 times 19? 9 times 20?

SUBTRACTION.

SECTION IX.

SUBTRACTION is the process of finding the difference between two numbers of the same kind.

OBS. It is the opposite of Addition.

The larger number is called the minuend; the smaller, the subtrahend; the answer is called the remainder.

A short, horizontal line, (read less), is the sign used to express Subtraction.

1. 4 and 3 are how many? take 3 from 7, and what remains?

2. 8 and 5 are how many? take 5 from 13, and what remains?

3. 67 are how many? Subtract 6 from 13, and what remains? take 7 from 13, and what remains? 4. How many are 7 and 9?

Subtract 9 from 16,

13. A man paid 17 dollars for some sheep and a calf; for the sheep he paid 12 dollars; what was the price of the calf? SOLUTION. If he paid 17 dollars for the sheep and calf together, and 12 dollars for the sheep alone, the calf must have cost the difference between 17 dollars and 12 dollars, which is 5 dollars. ANS. 5 dollars.

14. If a barrel of flour be worth 7 dollars, and a bag of coffee 13 dollars, what is the difference in their value?

15. 13 how many are 20?

17. In the first class there are 11 boys, in the second 15; how many more boys are there in the second class than in the first?

18. There were 16 barrels upon the wharf, but the express man took away 8 of them; how many were left upon the wharf?

19. 16 20. 25

how many are 25?

how many are 16?

21. In my garden there are rose-bushes bearing red roses and white roses, of each an equal number; I gathered 13 white roses and 20 red ones; by how many do the white roses remaining in the garden exceed the red? 22. 14+ how many are 25?

how many are 14?

24. Frank gathered 24 russet apples from one tree, and 12 baldwin apples from another; how many had he of one kind more than of the other?

25. 15+ how many are 27?

26. 27 - how many are 15?
how many are 20?

27. 30
28. 19 5 are how many

19?

? 5 and how many are

29. 9 tens less 2 tens are how many tens? are how many units ?

30. 19 tens less 8 tens are how many tens? are how many units?

31. 30 tens how many tens are 12 tens? are how many units?

32. What is Subtraction?

33. What name is given to the larger number? to the smaller number?

34. What name is applied to the answer?