Răspuns:
a) 7- [3 - (10-15)]= 7-[3-(-5)]=7-(3+5)=7-8=-1
c) 43+[-15+(12-51)]= 43+[-15+(-39)]=43+(-54)=-11
e) 13-[-2+5-(-4+6-2)]= 13-(3+0)=13-3=10
g) -22+19+[(-1)+7-(-5)]= -3+(6+5)=-3+11=8
i) -5-[-4+(2-7)]= -5-[-4+(-5)]=-5-(-9)=-5+9=4
k) -34- (12-24)+[(-5-7)+9)= -34 - (-12)+[(-12)+9]=-34+12+(-3)=-22-3=-25
m) -36+{-2 + [6+(-18-16)]} =
-36+{-2+[6+(-34)]}=-36+[-2+(-28)]=-36+(-30)=-66
0) -13+{-17-[-31 +19-(-3)]} = -13+[-17-(-31+19+3)]= -13+[-17-(-9)]= -13+(-26)=-39
b) 17-[2-(-5+13)]= 17-[2-(+8)]=17-(-6)=17+6=23
d) 53-[-5-(3-18)]= 53-[-5-(-15)]=53-(-5+15)=53-10=43
f) -15-[-12+(-3+7)]=
-15-(-12+4)=-15-(-8)=-23
h) -36-(3-6)+(-5-3) = -36-(-3)+(-8)=-33-8=-41
j) - [6-(18-32)] + 27 = - [6-(-14)]+27= - (6+14)+27= -20+27=7
1) 2-[-17 +(2-8) - 3] +(-17–39)= 2- [-17+(-6)-3]+(-56)=2-(-26)+(-56)=28+(-56)=-28
n) - 14+{-6-3+[-6+(-5)])= -14+[-9+(-11)]= -14+(-20)=-34
Explicație pas cu pas:
