Question

5-(-7)=
-7:0=
-55:(-5)=
8*(-9)=
-5-4=
-6-(-13)=
-12+(-9)=
-1
--- =
2
1:(-2)=
-6*2=
-18:6=

Answer 1

5-(-7)= 5+7=12

-7:0= делить на 0 нельзя
-55:(-5)=11
8*(-9)= - 72
-5-4=-9
-6-(-13)= - 6+13=7
-12+(-9)= - 21
-1
--- = - $\frac{1}{2}$ = -0,5
2
1:(-2)=- $\frac{1}{2}$ = -0,5
-6*2= -12
-18:6= -3

Answer 2

5-(-7)=5+7=12
-7:0=0
-55:(-5)=11
8*(-9)=-72
-5-4=-9
-6-(-13)=-6+13=7
-12+(-9)=-12-9=-21
1:(-2)=-0,5
-6*2=-12
-18:6=-3