Question

Vă rog cn mă poate ajuta. Repede!

Answer 1

6)
6/10*25/18 = 1 /5 * 5 /3 = 1/1 * 1/3 = 1 /3

7)
1,34-0,52= 0,82

8)
(7+1,2)*2-1,4 = 8,2*2-1,4=16,4-1,4=15

9)
[(6+12):3+4*3+2)]*2-25=(18:3+12+2)"2-25= (6+12+2)*2-25= 20*2-25=40-25=15

10)
{1+2*[3+4*(30+7)]}:3-100= [1+2*(3+4*37)]:3-100= [1+2*(3+148)]:3 -100 = (1+2*151):3-100=303:3-100 = 101-100 = 1