Resposta :
Explicação passo-a-passo:
a)16x4=64
b)24x3=72
c)78x2=156
d)49x2=98
e)57x3=171
f)96x6=576
g)68x2=136
h)393x5=1965
I)163x4=652
j)325x3=975
k)269x3=807
l257x7=1799
A)1 6
× 4=64
B)2 4
× 3=72
C)7 8
× 2=156
D)4 9
× 2=98
E)5 7
× 3=171
F)9 6
× 6=576
G)6 8
× 2=136
H)3 9 3
× 5=1.965
I)1 6 3
× 4=652
J)3 2 5
× 3=975
K)2 6 9
× 3=807
L)2 5 7
× 7=1.799