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a fost răspuns

Efectueaza respectand regulile invatate;

a) 435 : 5 x 3 x 2 : 2 =

b) 180 : 2 + [ ( 50 x 2 : 10 + 90 ) + 10 -- 25 x 4] =

Răspuns :

Cristinabranzan13
a) 435 : 5 x 3 x 2 : 2 =
=9x3x2:3=
=27x2:3=
=54:3=18

b) 180 : 2 + [ ( 50 x 2 : 10 + 90 ) + 10 -- 25 x 4] =
90+[(100:10+90)+10-25x4]=
90+[(10+90)+10-100]=
90+[100+10-100]=
90+[110-100]=
90+10=100

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