Question

7-(+2) = efectuati

-5+(-3)=

-8-(-5)

-(-3)+(-7)

12-(-16)

-9+(-7)

18-(+20)

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

(+8)-(+3)+(+2)-(-9)

-(-7)+(+3)-(-2)+1

6-(-10)-(+3)+(-8)

-15+(+7)-(-8)-(+1)

-(+4)-(+7)+(-9)+(+20)

+17-(-4)-(+3)+(-8)

Answer 1

Răspuns:

a) 5

b)8

c)13

d)10

e)28

f)2

g)2

h)8

i)2