11. What is the property used in the following statement: 3 x 14 + 9 x 14 = (3 +9) x 14? A. Closure C. Commutative B. Distributive D. Associative 12. Which property states that changing the grouping of numbers when multiplied does not change its value? A. Inverse C. Distributive B. Commutative D. Associative 13. When 16 + 49 is expressed in commutative property, which of the following is the equivalent expression? A. 49 + 16 C. 65 x 1 B. 65 + 1 D. - 49 + (-16) 14. Which of the following shows the identity property of addition? A. (35 + 16) + 10 = (16 + 35) + 10 B. (35 + 16) + 10 = 35+ (16 + 10) C. 35(16 + 10) = 35(16) + 35(10) D. (34 + 15) + 0 = 34 + 15 15. The area of a rectangle ABCD, 5( 4 + 6), can be expressed as the sum of the areas of the two smaller rectangles, 5(4) + 5(6). The fact that 5(4 + 6) = 5(4) + 5(6) illustrates which property? A. Inverse C. Distributive B. Commutative D. Associative +​