3.Kim bought a binder for $5, colored pencils for $2, and 4 notebooks for ndollars each. How much did she spend? Expression Do you think it will work? Evaluate (use n= 3) Did it work?Why or why not? nnFor each context below, draw a model for the situation, label all parts and then write an expressionthat answers the question. The first exercise is done for you. 4.Jill bought 12 apples. Jan bought xmore apples than Jill. How many apples did Jan buy? 5.Josh won 12 tickets. Evan won ptickets less than Josh. How many tickets did Evan win?

15 6.Tim is 3 years younger than his brother. If his brother isyyears old, how old is Tim? 7.I washed wwindows less than Carol, who washed 8 windows. If I get paid $2 for each window I wash, how much did I earn? 8.Jan bought amore apples than Jill. Jill bought 4 apples. Each apple costs $0.10. How much money did Jan spend on apples?

16 3.1b Homework: Matching and Writing Expressions for Stories Read each story problem. Determine which expressions will work for the story problem given. Try evaluating the expression for a given value. Explain why the expression did or didn’t work for the given problem. 1.Bob bought 5 books for xdollars each and a DVD for $12. How much money did he spend? Expression Do you think it will work? Evaluate (use x= 5) Did it work?Why or why not? 2.Jim won 30 tickets. Evan won ytickets less than Jim did. How many tickets did Evan win? Expression Do you think it will work? Evaluate (use y = 6) Did it work?Why or why not? a. 30 – b. y30 c. y+ 30 d. 30 ÷ Draw a model and then write an expression for each problem.3.I did 4 more problems than Minnie. If I did pproblems, how many did Minnie do? 4.I bought xpairs of shoes for $25 each and 2 pairs of socks for $3 each. How much did I spend? y y

17 5.I bought mgallons of milk for $2.59 each and a carton of eggs for $1.24. How much did I spend? 6.Paul bought ssodas for $1.25 each and chips for $1.75. How much did he spend? 7.Bob and Fred went to the basketball game. Each bought a drink for ddollars and nachos for n dollars. much did they spend on two drinks and two orders of nachos? How

18 3.1b Additional Practice Draw a model and write an expression for each problem. 1.Marina has $12 more than Brandon. Represent how much money Marina has. 2.Conner is three times as old as Jackson. Represent Conner’s age. 3.Diane earned $23 less than Chris. Represent how much Diane earned. 4.Juan worked 8 hours for a certain amount of money per hour. Represent how much Juan earned. 5.Martin spent 2/3 of the money in his savings account on a new car. Represent the amount of money Martin spent on a new car. 6.Brianne had $47 dollars. She spent $15 on a new necklace and some money on a bracelet. Represent the amount of money Brianne has now.

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