Multi-Step Word Problems 3.OA.D.8. Solve two-step word problems using the four operations. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding. (This standard is limited to problems posed with whole numbers and having whole-number answers; students should know how to perform operations in the conventional order when there are no parentheses to specify a particular order (Order of Operations). Ted bought 14 boxes of chocolate candy and gave 7 to his little brother. If each box has 6 pieces inside it, how many pieces did Ted still have? A painter needed to paint 10 rooms in a building. Each room takes 8 hours to paint. If he already painted 8 rooms, how much longer will he take to paint the rest? Luke made nine dollars mowing lawns and eighteen dollars weeding. If he only spent three dollars a week, how many weeks will the money last him? Jerry is at the library helping put away books. There are eighty-five total books to put away but a librarian takes four of them and leaves Jerry with the rest. If he can fit nine books on a shelf, how many shelves will he need? Mike invited 13 friends to a birthday party, but 7 couldn't come. If he wanted to buy enough cupcakes so each person could have exactly 4, how many should he buy? A waiter had nine tables he was waiting on. There were seven adults and three children at each table. How many customers total did the waiter have? A pet store has six bird cages. If each cage has six parrots and two parakeets in it, how many birds does the pet store have total? Haley's favorite band was holding a concert where tickets were four dollars each. Haley bought three tickets for herself and her friends and five extra tickets in case anyone else wanted to go. How much did she spend? Dave made fifty-three dollars mowing lawns over the summer. If he spent four dollars buying new mower blades, how many seven dollar games could he buy with the money he had left? Edward and his friend were buying trick decks from the magic shop for nine dollars each. How much did they spend if Edward bought four decks and his friend bought four decks? For homework Nancy had seventeen math problems and fifteen spelling problems. If she can finish eight problems in an hour how long will it take her to finish all the problems? Olivia was making baggies of cookies with nine cookies in each bag. If she had thirteen chocolate chip cookies and forty-one oatmeal cookies, how many baggies could she make? Robin uploaded thirty-five pictures from her phone and five from her camera to Facebook. If she sorted the pics into five different albums with the same amount of pics in each album, how many pictures were in each of the albums? A company invited fifty-nine people to a luncheon, but five of them didn't show up. If the tables they had held six people each, how many tables do they need? Tom was putting his spare change into piles. He had two piles of quarters and four piles of dimes. If each pile had five coins in it, how many coins did he have total? How much money did he have? Henry had ninety-six dollars. If he spent thirty-three bucks on a new game, how many nine dollar toys could he buy with the money he had left? Wendy bought four new chairs and four new tables for her house. If she spent six minutes on each piece furniture putting it together, how many minutes did it take her to finish? The school's baseball team had forty-eight new players and six returning players. If the coach put them into groups with six players in each group, how many groups would there be? At the town carnival Oliver rode the ferris wheel five times and the bumper cars four times. If each ride cost seven tickets, how many tickets did he use? Vanessa's team won their dodgeball game and scored thirteen points total. If Vanessa scored three of the points and everyone else scored five points each, how many players were on her team? A waiter had fifty-eight customers in his section. If two of them left and the rest of his tables had seven people at each table, how many tables did he have? Katie was selling her necklaces at a garage sale. She sold 4 bead necklaces and 3 gem stone necklaces. If each necklace cost 3 dollars and she sold all of them, how much money did she earn? Show the total amount of money in two ways. Emily had eighty-two files on her computer. She deleted forty of them and put the rest into folders with seven files in each one. How many folders did Emily end up with?