Help Mark get to the correct floor

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Presentation transcript:

Help Mark get to the correct floor Help Mark get to the correct floor. He is riding up and down on an elevator trying to get to the 18th floor. He is on the 14th floor, but forgot his brief case 3 floors below and had to go down to get it. Then he accidentally pushed the button for 9 floors above. When he got back on the elevator he had to ride it down with 6 strangers a total of 5 floors. Next, a little kid got on and pushed all the buttons. Mark rode the elevator up 2 floors before he could get off. What floor is he on? How many more floors should he go and in what direction?

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Ticket Out The Door Tell whether the sum will be positive or negative: -8 + -2 Use a number line: -5 + 6 Add using any method: 12 + -15 -7 + 12 -9 + -3 (-8) + -15 9 + -2 + -12 + 4 6 + -4 + 2 11 +( -11) + -5