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His friend gave him 3 more and now he has\u003Cbr>12 cards. If t represents the number of cards he started with, which equation models this? |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |\n| A. t + 3 = 12 B. 3t = 12 C. t − 3 = 12 D. t ÷ 3 = 12\u003Cbr>2) George divided his books equally onto 3 shelves. Each shelf held 15 books. If b represents the number of books he started with, which equation models this?\u003Cbr>A. b + 3 = 15 B. 3b = 15 C. b − 3 = 15 D. b ÷ 3 = 15 |  |  |  | 2.\u003Cbr>3. |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |\n| 3) A tank held some liters of water. 7 liters drained out, leaving 70 liters in the tank. If n represents the number of liters the tank held at first, which equation models this? |  |  |  | 4.\u003Cbr>5. |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |\n| A. 7n = 70 B. n ÷ 7 = 70 C. n + 7 = 70 D. n − 7 = 70\u003Cbr>4) Carol had a bag of marbles. She gave away 7 of them and has 63 marbles left. If m represents the number of marbles she started with, which equation models this? |  |  |  | 6.\u003Cbr>7. |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |\n| A. m ÷ 7 = 63 B. m − 7 = 63 C. 7m = 63 D. m + 7 = 63\u003Cbr>5) Oliver had some books on his shelf. He put 8 more books on it and now there are 32 books. If l represents the number of books he started with, which equation models this? |  |  |  | 8.\u003Cbr>9. |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |\n| A. 8l = 32 B. l + 8 = 32 C. l ÷ 8 = 32 D. l − 8 = 32\u003Cbr>6) Vanessa had some shells in her bucket. She found 4 more and now has 44 shells. If h represents the number of shells she started with, which equation models this?\u003Cbr>A. h ÷ 4 = 44 B. h + 4 = 44 C. h − 4 = 44 D. 4h = 44 |  |  |  | 10. |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |\n| 7) A jar held some buttons. 8 buttons were taken out, leaving 24 buttons in the jar. If b represents the number of buttons the jar held at first, which equation models this?\u003Cbr>A. b + 8 = 24 B. b ÷ 8 = 24 C. b − 8 = 24 D. 8b = 24 |  |  |  |  |  |  |  |  |  |  |  |  |\n| 8) Mike had some coins in his piggy bank. He added 7 more coins and now has\u003Cbr>21 coins. If c represents the number of coins he started with, which equation models this?\u003Cbr>A. c ÷ 7 = 21 B. 7c = 21 C. c − 7 = 21 D. c + 7 = 21 |  |  |  |  |  |  |  |  |  |  |  |  |\n| 9) Emily packed her cookies into 2 boxes with the same number in each box. There were 8 cookies in total. If k represents the number of cookies in each box, which equation models this?\u003Cbr>A. 2k = 8 B. k − 2 = 8 C. k ÷ 2 = 8 D. k + 2 = 8 |  |  |  |  |  |  |  |  |  |  |  |  |\n| 10) Paul had some points in a game. He earned 4 more points and now has 24 points. If w represents the number of points he started with, which equation models this?\u003Cbr>A. w ÷ 4 = 24 B. w + 4 = 24 C. w − 4 = 24 D. 4w = 24 |  |  |  |  |  |  |  |  |  |  |  |  |\n| 1-10 | 90 | 80 | 70 |  | 60 | 50 |  | 40 | 30 | 20 | 10 | 0 |\n\n[Math](Math www.CommonCoreSheets.com 1)[ www.CommonCoreSheets.com](Math www.CommonCoreSheets.com 1)[ 1](Math www.CommonCoreSheets.com 1)  \nWriting an Equation from a Word Problem  \nName: Answer Key  \n\n| Choose the equation that models each situation.\u003Cbr>1) Adam owned some trading cards. His friend gave him 3 more and now he has\u003Cbr>12 cards. If t represents the number of cards he started with, which equation models this?\u003Cbr>A. t + 3 = 12 B. 3t = 12 C. t − 3 = 12 D. t ÷ 3 = 12 |  |  |  |  | 1.\u003Cbr>2. |  |  | Answers\u003Cbr>A |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | -","cbCaihC2R6zOwlOy","https://ap.wps.com/l/cbCaihC2R6zOwlOy","pdf",632426,"English","# Choose the equation that models each situation\n## Questions 1-10\n## Answer key","[{\"question\":\"What skill do the problems focus on?\",\"answer\":\"They focus on writing and selecting the correct algebraic equation that models a word problem.\"},{\"question\":\"How are the unknown variables used in each question?\",\"answer\":\"Each problem defines a variable (such as t, b, n, or k) to represent the starting amount, then compares it to the final amount after an operation.\"},{\"question\":\"Are the answers provided in the document?\",\"answer\":\"Yes. An “Answer Key” section lists the correct multiple-choice option for each question from 1 to 10.\"}]","Writing an Equation from a Word Problem - Choose the Correct Equation | PDF",1790771818,76]