Răspuns:
a) -3+(-5)-(-8)+(+3)-(+7)=-3-5+8+3-7=-4
b) 8-(-6+2)+(-4-5)-(-3+9)=8-4-9-6=-11
c) -(-3)+(-7-3)-(7-15)+(-8+2-5)=3-10+8-11=-10
d) 13-(-8-3)+(9-15)-(-3-8+15)=13+11-6-4=14
e) -(-6+2)+(5-16)-(-4-3-8)=4-11+15=8
f) 4-(-8-3)+(-6+8)+(-10+3-5)=4+11+2-12=5
g) -(-12+17)+(-9-3)-(7-15)+(8-15-3)=5-12+8-10=-9
h)-16-(-8+3)+(-12-3)+(-7)-(-2-13)=-16+5-15-7+15=-18
i) 7+(-2-8)-(9-15)+(-4+2)-(-9+11)=7-10+6-2-2=-1
j) -(-6-3)+(+12-8-5)-(-8+17)+(+3-15)=9-1-9-12=-13
k) 18+(-2-8)-(-10-5)+(-4+3)-(-5-2+7)=18+6+15-1-0=38
l) -20-(3-15-2)+(-9+5+6)-(-8-5-7)=-20+14+2+20=16
m) 4+(-6-3)-[-8+(-2+5)]=4-9-(-8+3)=0
n) -3-(8-15)+(-8-3)-[7-(-13-9)]=-3+7-11-(7+22)=-36
o) 6-[-5-(-2+7)]+[-2+(5-19)]=6-(-5-5)+(-2-14)=6+10-16=0
p) -(-12+8)+[-7+2+(8-15+3)-(-9+8-3)]=4+(-7+2-4)+4=2
q) 14+(-5+3)+{-8+[-3-(-9-8)+5]}=23
r) -12-[-3+(-16+3)]-{-4-[+7-(-9-7+17)]}=-6
s) +(-8+13)+{-9-[+8-(-9+3)]}-[-8+(-7-3)}=0
t)-16+{-10-[-4+(-3+5)]-3}-{4-[-6+(2-5)-7]+3}-9=-53g
Explicație pas cu pas:
AI GRIJĂ
