9
QuizMultiple Choice
Adding Integers
Question 9 • Pre-Algebra - MA3119 A ? Distance Learning
Sebastian was in a hotel lobby and took the elevator up 7 floors to his room. Then he took the elevator down 9 floors to the parking garage. He described his movement with the expression below.What is Sebastian’s error?
Answer
A
Sebastian should have used –9 and 7.B
Sebastian should have started at zero before adding –7.C
Sebastian should have switched the two addends and written .
D
Sebastian should have used 0 and –9.