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Regents Exam Questions CC.A.REI.1: Identifying Properties Page 1 www.jmap.org Name: __________________________________ CC.A.REI.1: Explain each step in solving a simple equation as following from the equality of numbers asserted at the previous step, starting from the assumption that the original equation has a solution. Construct a viable argument to justify a solution method (linear). 1 When solving the equation , Emily wrote as her first step. Which property justifies Emily's first step? 1) addition property of equality 2) commutative property of addition 3) multiplication property of equality 4) distributive property of multiplication over addition 2 When solving for the value of x in the equation , Aaron wrote the following lines on the board. [line 1] [line 2] [line 3] [line 4] [line 5] Which property was used incorrectly when going from line 2 to line 3? 1) distributive 2) commutative 3) associative 4) multiplicative inverse 3 A teacher asked the class to solve the equation . Robert wrote as his first step. Which property did he use? 1) associative property 2) commutative property 3) distributive property 4) zero property of addition 4 While solving the equation , Becca wrote . Which property did she use? 1) distributive 2) associative 3) commutative 4) identity 5 A method for solving is shown below. Identify the property used to obtain each of the two indicated steps. Regents Exam Questions CC.A.REI.1: Identifying Properties www.jmap.org 1 2 3 4 5 ANS: 1 REF: 061401ai ANS: 1 REF: 061405ia ANS: 3 REF: 081419ia ANS: 1 REF: 080601a ANS: (1) Distributive; (2) Commutative REF: 061132ia