The question in my test paper asks the following-

Question

By making use of the correct order of operations, which of the following three equations (a-c) are possible?
a)(35-13)x3 b)35-13x3= c)35-(3x13)

I thought the answer would be a)only, but the answer sheet says all of them. Can you tell me what you think?

Answer 1

all of them, they are equivalent.

Answer 2

<a> is right

Answer 3

What is <10x10> divided by 200 =___

Answer 4

1/2