Question

7 pontos
ME AJUDEM


Calcule;
a)(-4)+(-5) =
b)( 8 ) - ( +3)=
c)( +7 ) -(-6)=
d)(-5)+(-6)-(+9)=
e) 12-(-9 ) +8=
f)9 - 15 - ( +16)=
g) -15 +8+(-10)=
h) -45 +19 +(-30)=
i)28 +15-16 +(-20)=
j) 25-30+4-9-20=​

Answer 1

-9

5

13

-20

29

-31

- 17

-56

7

-30