This document contains math homework problems involving adding integers using a number line, evaluating expressions, and word problems about elevators and football plays. It asks the student to find the sum or difference of numbers using a number line, evaluate expressions when given values for variables, write an expression to find what floor an elevator lands on after starting on the 6th floor and moving up and down floors, and explain how to determine the number of yards needed on a fourth football play to gain a total of 10 yards across 4 plays.

1. 2.2 Adding Integers Homework
#2-6, 24-26, 52, 56
Name: ___________________ Date: __________
ADDING WITH A NUMBER LINE: Use a number line to find the sum.
2) -6 + 8 3) -3 + (-9) 4) 5 + (-7) 5) -4 + 4
6) -2 + (-1)
EVALUATING EXPRESSIONS: Evaluate when a = -13, b = 24, and c = -27
24) a + b 25) b + c 26) –b + c
ELEVATORS:
52) You enter an elevator on the sixth floor. The elevator goes up 3 floors and then down 5 floors, where
you exit. Write and evaluate an addition expression to find the floor on which you exit.
SHORT RESPONSE:
A football team gained 7 yards on the first play, lost 9 yards on the second play, and gained 6 yards on
the third play. To get a first down, they must gain 10 yards in 4 plays. How many yards must they gain on
the fourth play to get a first down? Explain your reasoning.