124. DRILL TABLE No. 3. Simple Numbers. A 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23 24, 25. DRILL TABLE No. 3 (continued). 125. Exercises upon the Table. Ex rs tuv W X Y Z BC D1 E 82. Express A by figures.* amples. 9 83. Add, in A, the 1st and 2d; 2d and 3d; 1. 1763819 3 276 etc. 2. 1452 364 4 368 84. Add, in A, from 1 to 6; 2 to 7; etc. 3. 981 486 9 234 85. Find, in A, the difference between the 1st and 2d; the 2d and 3d; etc. 4. 336 324 2 592 86. Multiply A by 6. 5. 864 576 | 7 488 87. Multiply A by 7. 6. 5 35 595 6 545 88. Multiply A by 8. 7. 2 28 728 4 368 89. Multiply A by 9. 90. Divide A by 6. 92. Divide A by 8. 8. 1468 952 | 7 616 91. Divide A by 7. 93. Divide A by 9. 9. 351 | 612 4 896 94. Multiply C by B; add D to the product; and find the difference between the 10. | 6 | 72 | 648 7 128 amount and E. 11. 1888 352 8 448 95. Divide D by B; also divide E by B; 12. 7|56 392 8 232 and find the difference between the 13. 248 912 | 2 736 sum of the quotients and D. 96. Divide E by D; subtract the quotient 14. 545 585 2 925 from C; and multiply the remainder 15. 954 864 | 6 912 16. 6 66 594 4 158 97. Subtract C from D; divide the remain der by B; and with the quotient 17. 13 57 627 8 778 divide E. 18. 749 588 9 996 Oral Practice. 19. 565 715 | 6 435 20. 896 768 5 376 98. How many are 9+q to x less y less z ? 99. How many are 34 +r to v, divided by q? 21. 2 34 884 | 6 188 100. How many are 45+t to z, divided by q? 22. 4 84 6728 736 101. How many are r times s+t toz, divided 23. 999 495 7 425 by q? 102. How many are t times u/v to z, di. 24. 7 91 273 9 282 vided by q? 25. 6 78 624 3 744 by B. 15 16 17 * See Explanation of Table, page 57. 126. The picture above represents pieces of metal weighed and stamped by authority of government, and used in buying and selling. Such pieces of metal are coins. Each coin represents a unit of value. 127. Dollars and cents are the units of value chiefly used in business. Eagles, dimes, and mills are also used, but there is no coin to represent a mill. To read and write numbers in United States Money. 128. The dollar, being the principal unit of United States money, is expressed at the left of the decimal point; dimes, cents, and mills, being tenths, hundredths, and thousandths of a dollar, are expressed at the right of the decimal point. Thus, 11 dollars, 2 dimes, 3 cents, and 4 mills are written $ 11.234; and the expression is read, "Eleven dollars twenty-three cents four mills.” For exercises in reading and writing, turn to page 73. 129. Oral Exercises in Reduction. a. How many mills in 1 cent ? in 18 cents 5 mills ? By what do you multiply to change cents to mills ? dollars to cents ? dollars to mills ? b. Change $14.08 to cents. e. Change $ 2.625 to mills. c. Change $1.62 to cents. 1. Change $5.02 to mills. d. Change $0.48 to cents. g. Change $4 to mills. h. How many dollars are there in 500 cents ? By what do you divide to change cents to dollars ? mills to dollars ? i. How many dollars are there in 170 cents ? in 3689 cents ? j. How many dollars are there in 1875 mills ? in 4728 mills ? 130. In performing the examples above, you have changed numbers expressing a certain amount of money to numbers whose units are larger or smaller, but without changing the amount itself. Such a process is called reduction. For other examples in reduction of United States money, see page 73. 131. Examples for the Slate. ADDITION, SUBTRACTION, MULTIPLICATION, AND DIVISION. How do you write dollars, cents, and mills, when you are to add or subtract them ? (Art. 46.) 1. My deposits in a bank were $ 192.92 and $155.37; of this I have withdrawn $ 79.48, $ 71.62, and $ 78.21. What is the balance in the bank ? 2. What must I pay for 23 yards of silk at $2.37 a yard, and 5 yards of lace at $1.68 a yard ? 3. What is 1 fifteenth of $ 287.40 ? 1 seventeenth of $ 722.50 ? In the following examples continue the division to cents and mills. (Art. 102.) In the answers, reject mills when less than 5, and call 5 mills or more 1 cent. 4. What is 1 fifth of $ 17 ? of $83 ? 1st Ans. $ 3.40. 5. What is 1 sixteenth of $ 981 ? 6. Eight men chartered a schooner for $295. What was each man's share of the cost ? 7. When 32 lawn-mowers were bought for $696, what was the price of each ? 8. Mr. Rice paid $198.45 for 35 school đesks. What would 168 desks cost at the same price ? To divide one sum of money by another. 132. ILLUSTRATIVE EXAMPLE. At $ 2.12 per pair, how many pairs of slippers can be bought for $ 100 ? WRITTEN WORK. 212) 10000 (47 848 Explanation. – To divide one sum of money by another, both dividend and divisor must be expressed in the same denomination. Here the divisor being cents, the dividend must be changed to cents. (Art. 129.) Dividing 10000 cents by 212 cents, we have 47 for a quotient, with a remainder of 36 cents. Ans. 47 pairs ; 36 cents remain. 1520 36 9. I paid $ 80 for turkeys at $2.50 apiece. How many turkeys did I buy? Divide $ 42 by $ 1.75. 1st Ans. 32. 10. A conductor took up $ 1224 worth of railroad tickets from Springfield to New York at $4.25 apiece. How many tickets did he take? 11. How many boxes at 33 cents a box can be bought for $ 20, and how many cents will be left ? 12. How many veils at 924 each can be bought for $30 ? 13. How many dinners at $ 0.625 each will $ 22 pay for ? For additional examples, see page 73. |