16. (1+3)

O A. (161) + (163)

B. (16•1) + (3•16)

c. (3+1). 16

D. (16+3) : 1

16 (1+3) = 64

(161) + (163) = 324

(16.1) + 3.16) = 19.26

(3+1) 16 = 64

(16+3) x1 = 19

Explanation:

1. mutiply the numbers 16x4 = 64

2. add the numbers using long

3. add the numbers using long addion

4. multiply the numbers 4x16 = 64

5. any expression multipled by 1 remains the same