1.  (256)0.16 x (256)0.09 = ?

A. 4
B. 16
C. 64
D. 256.25

Answer: Option A

Explanation:

(256)0.16 x (256)0.09 = (256)(0.16 + 0.09)

= (256)0.25

= (256)(25/100)

= (256)(1/4)

= (44)(1/4)

= 44(1/4)

= 41

= 4