12-7.2F

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GRADE 7 MATHEMATICS (7.2) Number, operation, and quantitative reasoning. The student adds, subtracts, multiplies, or divides to solve problems and justify solutions. The student is expected to: (F) select and use appropriate operations to solve problems and justify the selections.

Celeste bought 5 identical t-shirts and 4 pairs of socks for a total cost of $44.86, including tax. Each pair of socks cost $1.19, including tax.   Write an expression that could be used to find the cost of each t-shirt, s, including tax.

  Determine the cost of each t-shirt.

1. What mathematical concepts and vocabulary do I need to know to be able to work this problem?

2. Will the Grade 7 Mathematics Formula Chart be helpful on this problem? Why or why not?

3. Will a picture or diagram be helpful on this problem? If so, how?

4. What problem-solving strategy or strategies will I use to help solve this problem?

5. Extension (7.2C): Draw a number line model for -4 + 2 +5 .

TEKSING TOWARD TAKS © 2006

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