Ex. 7.

Write in figures:

1. Fifty thousand three dollars, eighty thousand nine hundred ninety dollars.

2. Twenty-eight million seven hundred forty-four thousand one hundred sixty-nine dollars.

3. Five hundred sixteen dollars and ten cents, twentyfive hundred fifty dollars and sixty-nine cents.

4. Sixteen hundred million thirty thousand three hundred eight dollars and fifty cents.

5. Twenty-seven hundred million one thousand one dollars and eighty-seven cents.

6. Five hundred thousand two hundred one dollars and

seventy-five cents.

7. Eight million fourteen thousand three hundred twenty-five dollars and twenty-five cents.

8. Ninety-seven million two hundred thousand one hundred two dollars and five cents.

9. Ten million ten thousand ten dollars and ten cents. 10. Eleven hundred ten thousand dollars and eleven

CHAPTER II.

ADDITION.

32. If you put 2 cents with 3 cents, how many cents have you? Answer, 5 cents.

How can you express this operation on your slate?

You can write the figure 2; then the figure 3 beneath it; draw a line underneath, and below the line write the figure 5. The work is shown in the margin.

Or, you can express it thus: 2+3 = 5.

2315

The sign is called plus, and means that the numbers between which it is placed are to be counted together; and the sign = means equals. So that 2+3 = 5 is read 2 plus 3

equals 5.

33. The operation of finding a number equal to two or more numbers taken together is called addition; and the result is called their sum. The numbers to be added are called addends.

Name the sums of the following numbers, and practice naming them until you can name each sum the instant your eye rests upon the numbers to be added.

34. Since 10 in any place is equal to 1 in the next place to the left, if the sum of the digits of any column exceeds 9. write the units' figure of the sum under the column added and carry the number of tens to the next column.

Thus, in the following example:

872

991

1863

The sum of the digits in the right-hand column is 3. The sum of the digits in the second column is 16; the 6 is written under this column and the 1 is carried to the third column. The sum of the digits of the third column, together with the 1 carried to it, is 18; the 8 is written under this column and the 1 is carried to the place of thousands.