Answer:

1.What floor is the elevator now?

2.15th Floor, Three Floors, Six Floors

3.Subtraction and Addition

4.(15-3)+6=N

5.15-3=12

12+6=18

=He/She is on 18th Floor now

Step-by-step explanation:

Hope it helpeu~

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Answer:

what is asked: on what floor is the elevator now

what are the given facts: 15, 3, 6

what is the operation to be used: subtraction and addition

what is the number sentence: 15-3+6=N

Step-by-step explanation:

Solution and answer: 15-3= 12

12+6= 18

final answer: the elevator is currently in the 18th floor