Question

me ajudem por favor ??

Answer 1

a) 4+4=8

b) 27-27=0

c) 1+3-(1)-(-3)
1+3-1+3= 6

d) 1/3²+1/2² .2=

1/9 +1/4 .2=

1/9+2/4=

1/9+1/2=

2+9/18=

11/18