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: (E) simplify numerical expressions involving order of operations and exponents.
Problem #1: Simplify the expression 24 (24 4 2) 2 42 . Show your work.
Problem #2: Circle the expressions below that have a value of 30. (3 10) (5 10 2)
(4 8) (5 3) 8
(3 1) 2 (5 10 2) (9 4 2)
1. What mathematical concepts and vocabulary do I need to know to be able to work these problems?
2. Will the Grade 7 Mathematics Formula Chart be helpful on these problems? Why or why not?
3. Will a picture or diagram be helpful on these problems? If so, how?
4. What problem-solving strategy or strategies will I use to help solve these problems?
5. Extension (7.2E): If the parenthesis were removed from the expression in Problem #1, what value would the expression have? Show your work.
6. Extension (7.2E): Can you rearrange and/or insert additional parenthesis in the expression in Problem #1so that it will have a value of 64? If so, how? Show your work.
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