Thinking of solving problems: When doing this disjunctive operation, we should first consider the calculation in brackets. Then consider addition, subtraction, multiplication and division. Then when we do the specific operation, we should consider the above operation steps and get the answer step by step. So here you can list the above formula, first calculate the division operation in brackets, and then multiply to get the answer.

The detailed calculation process is as follows

5×(3÷ 1)

=5×3

= 15

So through the above off-design calculation process, the answer is 15, which means it takes 15 minutes to steam five steamed buns.

Extended data:

Solution: When calculating vertical multiplication, first multiply the first digit of one digit by another digit to get a one-step answer. Then use another number to calculate the multiplication from low to high in turn, and get several answers. Finally, add up all the answers and you can get the final answer.

5×3= 15

Step 1: 3×5= 15

So, by vertical multiplication, the answer can be 15.