Answer:
B. 20÷10=2
Explanation:
Well , A and C can not answer 2×10 = 20 , whatever , even have not make the equation correct .
Correct A. 2÷10=2/10=0.2 Even have a correct, still can not answer why 2×10 = 20
_______________________________ (1). 2÷10 ≠ 20 ( Proof )
B. 20÷10=2 This a correct answer (1). 20÷10 = 2 ( Proof )
_______________________________ ↓
_______________________________ (2). 20 = 2×10 ( Proof )
_______________________________ ↓
_______________________________ (3). 20 = 20 ( Proof )
it answered why 2×10 = 20
Correct C. 20×10 = 200 Still Wrong answer
_______________________________ (1). 20×10 ≠ 20 ( Proof )
Hope that will help you to understand