What I Know (Pre-test) Write the letter of the correct answer on a separate sheet of paper. 1. Which property is used in the following expressions, 3 (6 + 5) = 18 + 15? A. Associative Property of Addition C. Commutative Property of Addition B. Associative Property of Multiplication D. Distributive Property 2. Which Property of Addition is used in the following expressions, (7 + 9) + 5 = 7+(9 + 5)? A. Associative Property C. Distributive Property B. Commutative Property D. Identity Property 3. Which is an example of an identity Property of Addition? A. 9 + 7 = 7 + 9 C. (7 + 8) + 6 = 7+ (9 + 5) B. 4 + 0 = 4 D. 2(1) = 2 4. Which of the following does not show the Commutative Property of Addition? A. a + b = b ta C. 3 + x = x + 3 B. ab = ba D. 3x + 4y = 4y + 3x 5. What number, which when multiplied by any number, gives the product as the number itself? A 3 C. B. 2 D. O

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