Applying Addition and Subtraction of Integers

Warm Up

In a football game, a team had a gain of 10 yards, a loss of 5 yards, a loss of 2 yards, and a gain of 4 yards in the first 4 plays. Write and evaluate an expression to find the team’s change in position.

Over a period of four hours, the temperature rose 3⁰F, rose 2⁰F, dropped 4⁰F, and dropped 1⁰F. If the starting temperature was -2⁰F, what was the temperature after four hours?

• What is the total change in Mei’s checking account if she writes a $35.00 check for shoes, deposits $50.00, and then writes a $55.00 check for a sweater?

• What additional information is needed to find the balance in Mei’s checking account?

In round 1 of a game, a student loses 5 points, loses 3 points, gains 17 points, and loses 7 points. What is the student’s score at the end of round 1?

Exit Ticket1. -7 + 11 – 6 + 8 =2. 40 – 16 + 10 =3. -20 + 18 + 30 =4. The Possums were on their 20 yard line. On the

next four plays they gained 1 yard, lost 8 yards, lost 12 yards, and gained 24 yards. From what yard line will they start their next play?

5. Tanya made a deposit of $250.00 into her checking account. Then she withdrew $55.00. The next day, she wrote a check for $145.00. She had $350.00 in her account before any of these transactions. How much money is in her account now?