tolong jawab ini, butuh bantuan!

8x(10+5) = (8 x 10)+(8x5)
= 80+40 = 120

7 x 89 = (7x8)+(7x9)
= (56+6)3
= 623

  9) 8 x (10+5 ) = (8 x 10) + (8 x 5) =120
10) 7 x 89= (7 x 80) + (7 x 9)= 623