Question

a) 30+4x[36:9+3x(20+8x42:2)]=
b) 2+2x[2+3x(2+202:2)-306:3)]=
c) [(8x7)+244]:100=
d) 82448-[236x7+(116+380):8]-
e) [(20x20-20):2-190x765:5]x0=
al doilea exercitiu
a+387x2=956x3

a-228x4=189x2

Answer 1

a) 30+4x[36:9+3x(20+8x42:2)]=
= 30+4x[4+3x(20+168)]=
= 30+4x[4+3x188)]=
= 30+4x(4+564)=
= 30+4x568=
= 30+2272=2302

b) 2+2x[2+3x(2+202:2)-306:3)]=
=2+2x[2+3x(2+101)-102)]=
=2+2x(2+3x103-102)=
=2+2x(2+309-102)=
=2+2x209=
=2+418=420

c) [(8x7)+244]:100=
=(56+244):100=
=300:100=3

d) 82448-[236x7+(116+380):8]=
=82448-(1652+496:8)=
=82448-(1652+62)=
=82448-1714=80734

e) [(20x20-20):2-190x765:5]x0=0


al doilea exercitiu
a+387x2=956x3
a+774=2868
a=2868-774
a=2094

a-228x4=189x2
a-912=378
a=1290

Answer 2

A)30+4×[4+3×(20+168)]= 30+4×[4+3×188]= 30+4×[4+564]= 30+4×568= 30+2272=2302