Bobby subtracted 75 - 45 and said the answer is 30. Is his answer reasonable? why or why not?

Answer 1

It looks reasonable to me.

7 - 4 = 3
5 - 5 = 0

Answer 2

I don't understand the question.
Is the answer reasonable?
30 is the answer.

Answer 3

It looks reasonable to me because 75-45= 30 and 30+45= 75

Answer 4

His answer is reasonable because
75-30=45 and 45+30=75.

Answer 5

yea wut that nicole said