Question

dau coroane va rog mult

Answer 1

1. (9-1):4+1*1=2+1=3 2. 2^1=2 2^2=4 2^3=8 2^4=..6 2^5=..2 Se repeta din4 in 4,2018:4=504 r:2 Ultima cifra e 2^2=4 3.Prin adaos la sute=4200 4.a*b+a*c=135 a(b+c)=135 Dar noi stim ca a=9 9(b+c)=135 b+c=15 5.a:7=4 r:2 a=4*7+2 a=30 Deci 30:7=4 r:2