Question

Efectuați :
B) 8-(-6+2)+(-4-5)-(-3+9) = -3
C) -(-3)+(-7-3)-(-7-15)+(-8+2-5) = -10
D) 13-(-8-3)+(9-15)-(-3-8+15) = 14
E) -(-6+2)+(5-16)-(-4-3-8) =10
VREAU REZOLVĂRILE
DAU COROANĂ !!!

Answer 1

b)
8-(-6+2)+(-4-5)-(-3+9)
= 8- (-4)+(-9)-6
=8+4-9-6
=12-9-6
=3-6
=-3

c)
-(-3)+(-7-3)-(-7-15)+(-8+2-5)
=3+(-10)-(-22)+(-11)
=3-10+22-11
=-7+22-11
=15-11
=4

d)
13-(-8-3)+(9-15)-(-3-8+15)=
=13-(-11)+(-6)-4
=13+11-6-4
=24-6-4
=18-4
=14

e)
-(-6+2)+(5-16)-(-4-3-8)=
=-(-4)+(-11)-(-15)
=4-11+15
=-7+15
=8