ADDITION LESSON 7 Addition is an operation by which two or more numbers are combined into one number, called their Sum or Amount. Only similar numbers can be added. Units must be added to units, tens to tens, dollars to dollars, pounds to pounds, etc. 1. How many are 6 hats and 7 hats ? 2. How many are 3 eighths and 2 eighths ? + = ? 3. How many are 3 tenths and 6 tenths ? * + 6 =.3 +.6 4. A man paid $187 for a coat and $ 3 for a hat. How much did both cost him ? 5. How many feet is it around a table 61 feet long and 31 feet wide? 6. A room is 12j feet long and 10 feet wide. What is the distance around the room? 7. A grocer bought from one farmer 131 pounds of butter and from another 114 pounds. How many pounds did he buy from both ? 8. If 43 yards of cloth are needed for a coat, and 2; yards for a vest, how many yards are needed for both ? Add: 11. 13. $4,785 $ 3,714,110 $ 12.36 $ 4.795 $94.01 45,651 205,009 17.04 9.368 36.10 728,198 8,196,573 31.36 12.06 81.015 469,873 84,954 19.07 7.316 39.901 e. a. d. + + 22. Add three hundred ninety-five, one thousand seventy-four, eleven thousand four hundred eighty-nine, and thirty-two thousand three hundred seventy. 23. Add three million five hundred seventeen thousand sixty-five, seven hundred forty-six thousand seven hundred, seventeen million twelve thousand twenty-one, fifty million thirteen thousand sixteen. 24. 40.1 + 927 + 45.16 + 2079 + 180.64. SUBTRACTION LESSON 8 Subtraction is an operation by which the difference between two numbers is found. Only like numbers can be subtracted. Units must be taken from units, tens from tens, hundreds from hundreds, dollars from dollars, etc. The number from which another is taken is called the Minuend. The number taken from the minuend is called the Subtrahend. The number that is left after the subtrahend is taken from the minuend is called the Difference or Remainder. 1. John had 24 marbles and gave his brother 10. How many had he left ? 2. A boy picked 82 quarts of berries and sold 31 quarts. How many quarts remained ? 3. A tailor bought a piece of cloth containing 26 yards. After he had used 12 yards, how many yards were left ? 4. A grocer bought 16 dozen eggs and sold 52 dozen. How many dozen were left ? 5. 7 - 2) = 9. 7 - 2 13. 8.2 –.6 6. 5 – 3) = 10. % -1 = 14. - 1 = 7. 8} – 23 = .8 - .2 = 15. 93 – = 8. 7 - 21 = 12. 2.5 – 1.3 = 16. 106 – 73 = 11. LESSON 9 Subtract: 1. 2. 4638 8756 3769 4868 3. 405067 376989 4. 5. 940.067 737.698 acres. 6. 24 – 8 = 11. 5.25 – 3.06 = 7. 39 – 124 = 12. 86.01 – 72.621 8. 164 - 73 13. 520 – 176.3 9. 393 – 242 14. 900 – 333.42 10. $6.50 – $4.33} 15. 4006 - .064 16. A clerk earns $ 56 a month. How much has he left after paying expenses amounting to $25.63 ? 17. A man bought 341; acres of land and sold 808 How many acres had he remaining ? 18. A miller bought corn at 52¢ a bushel and sold it at 517¢ a bushel. How much did he lose per bushel ? 19. A lady purchased goods amounting to $ 7.371. How much change should she receive from $10 ? 20. A farmer has 426 rods of fence to build. If he hires a man to build 241rods, how many rods are still left to build ? 21. A man has a field of 281% acres to plow. After he has plowed 184 acres, how many acres are left to plow ? 22. How many feet must be added to 36feet to make 4911 feet? 23. The minuend is 346.32 and the subtrahend is 1477 1%. Find the difference. 24. The minuend is 253.06 and the subtrahend is 464 less than the minuend. Find the subtrahend. ADDITION AND SUBTRACTION LESSON 10 1. 2 + 1-1= 6. 61 - *+7= 11. 6+ - = 2. 5 – 1 + 11 = 7. 74 + - 12. 7-1 + = 3. 2} + 24 – 3 = 8. 73 - 5 + 24 = 13. 5+ 3} - {= 4. 4 +7 - j = 9. 12 – 93 + }= 14. 3 – += 5. 5 – 3 + 6 = 10. 7 – 33 + 2 = 15. f+5 -112= 16. A boy had 18 marbles. He lost 11 of them and won 12. How many had he then? 17. A butcher sold 24 pounds of meat to one person, and 4ž pounds to another. How much did he sell to both ? 18. 9] + 134 – 164 21. 284 – 14) + 7 = 19. 163–82 +63 = 22. j + - + 24 = 20. 9.5 + 3.7 – 4.8= 23. 24.3 – 74 + 6.25 + 5) = 24. From a box containing 38 bushels of oats were sold 43 bushels, 7 bushels, 85 bushels. bushels remained ? 25. Four bees in succession visited a clover blossom. The first carried away of the pollen, the second, 1, and the third, k. How much remained for the fourth ? A farmer cut 24 tons of hay from one field and 21 tons less from another. How many tons did he cut from both ? How many 26. |