Răspuns:
b) (36,8×4,5-27,5×4,4):(23,4×1,8+180,88)=
(165,6-121):(42,12+180,88)=44,6:223=0.2
d)(72,4×2.75+0.9):(57,4:16,4-7,4)=
(199.1+0.9):(3,5-7,4)=
200:(-3,9)=-51,28
b)3,4×[0.5×(21.4×6.5-39.7)-21.5]=
2,4×[0.5×(139.1-39.7)-21,5]=
2,4×(0.5×99.4-21,5)=
2,4×(49.7-21,5)=
2,4×28,2=67,68
d)0.5×[2,4×(23,4×3.5-37.4)-6,4]=
0.5×[2,4×(81.9-37,4)-6,4]=
0.5×(2,4×44,5-6,4)=
0.5×106.8-6,4=
53,4-6,4=47
