Question

Sa se efectueze:
a)17-(+19)=
b)-36-(-39)=
c)48-(-51)=
d)-30+(+16)=
e)-(-5)+3=
f)-(+7)-(-13)=
g)-7-(-3)-2=
h)-5-4-(-8)-(-2)=
i)15-6-(+3)-17=
j)8-10-(-4+3)-1=
k)-3+(-7)-(-11)=​

Answer 1

Răspuns:

17-19=-2

-36-(-39)=-36+39=3

48-(-51)=48+51=99

-30+16=-14

-(-5)+3=8

-7-(-13)=-7+13=6

-7-(-3)-2=-7+3-2=-4-2=-6

-5-4-(-8)-(-2)=-5-4+8+2=-9+8+2=-1+2=1

15-6-3-17=9-3-17=6-17=-9

8-10-(-4+3)-1=-2+4+3-1=2+3-1=5-1=4

-3+(-7)-(-11)=-10+11=1