Question

Aplique a cada item a propriedade indicada.
A) 10 . 20 -> comutativa
B) 5 . (7 . 12) -> associativa
C) 5 . (8 + 9) -> distributiva
D) 6 . (15 - 3) -> distributiva
E) (3 . 4) . 10 -> associativa
F) 5 . 9 + 5 . 8 -> distributiva
G) 6 . 15 - 6 . 13 -> distributiva

Answer 1

10 . 20 = 20 . 10
5 . ( 7 . 12) = 7 . (5 . 12) = 12 . (5 . 7)
5 . (8 + 9) = 5 . 8 + 5 . 9
6 . (15 - 3) = 6 . 15 - 3 . 6
(3 . 4) . 10 =  (3 . 10) .4 = (10 . 4). 3
5 . 9 + 5 . 8 = 5 . ( 9 . 8)
6 .15 - 6 . 13 = 6 . (15 - 13)