Resposta:
f)1,6x10^3
g)6x10^1
h)2x10^1
i)3x10^-7
j)5x10^-9
Explicação passo-a-passo:
f)4*4=16; 5+(-3)=2 logo, 16x10^2 ou 1,6x10^3
g)2*3=6; 7+(-6)=1, logo 6x10^1
h)12/6=2; 4-(3)=1, logo 2x10^1
i)6/2=3; (-3)-(+4)=(-7), logo 3x10^-7
j)25/5=5; 4-(+13)=-9, logo 5x10^-9
