0,3 × 1,25 × 0 , 13 × 80 = ( 0 , 3 × 0 , 13 ) × ( 1 , 25 × 80 ) = 0,039 × 100 = 3,9
1 , 35 × 3 , 75 + 3 , 75 × 8 , 65 = 3 , 75 × ( 1 , 35 + 8 , 65 ) = 3 , 75 × 10 = 375
2 , 35 × 1 , 47 − 1 , 47 × 2 , 34 = 1 , 47 × ( 2 , 35 − 2 , 34 ) = 1 , 47 × 0 , 01 = 0 , 0147
#hoc24