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Subtracting Integer Review
Bell Ringer
c b 0 a
a has twice the absolute value of b b is half way between c and 0 c = l -5 l + (-15)
a = ? b = ? c = ?
Bell Ringer
c b 0 a
a has twice the absolute value of b b is half way between c and 0 c = l -5 l + (-15)
a = 10 b = -5 c = 10
Where we were… O Adding Integers Review
O Number lineO ContextO Rules
O Same signs =O Opposite signs =
O SubtractionO Number LineO Rules
O Additive Inverse
Where we are… O Students will learn to…
O Review subtracting integers.
Where we are going…O Adding and subtracting integers
quiz on Friday.
HomeworkO Check your homework
O Grade yourself on your understanding
O BO CO DO I
Subtracting Integers Review
O Power WriteO Is p – q = p + (-q)?
-10 - 10O Write an addition expression
O Solve
-10 - 10O Write an addition expression
O - 10 + (-10)O Solve
O -20
-12 - 5O Write as an addition expression
O Solve
-12 - 5O Write as an addition expression
O -12 + (-5)O Solve
O -17
- 30 - 5O Write an addition expression
O Solve
- 30 - 5O Write an addition expression
O - 30 + (-5)O Solve
O -35
4 - 20O Write an addition expression
O Solve
4 - 20O Write an addition expression
O 4 + (-20)O Solve
O -16
-10 – (-5) O Write an addition expression
O Solve
-10 – (-5) O Write an addition expression
O -10 + 5O Solve
O -5
5 – (-8)O Write an addition expression
O Solve
5 – (-8)O Write an addition expression
O 5 + 8O Solve
O 13
-5 – (-20)O Write an addition expression
O Solve
-5 – (-20)O Write an addition expression
O -5 + 20O Solve
O 15
Mary borrowed $15 from her friend, and then another $12 from her brother.
Write a subtraction expression that represent this scenario?
-15 - 12
How much does Mary owe? Write it as an integer.
-27
O LeSean McCoy of the Philadelphia Eagles gained 184 yards rushing in the first game of the season. On the first drive, he gained 8 yards, lost 3 and then lost 3 more.
O Write an addition or subtraction problem to show the scenario of the first drive.
O How many yards did he gain the rest of the game to reach his total of 184?
O LeSean McCoy of the Philadelphia Eagles gained 184 yards rushing in the first game of the season. On the first drive, he gained 8 yards, lost 3 and then lost 3 more.
O Write an addition or subtraction problem to show the scenario of the first drive.O 8 – 3 – 3 or 8 + (-3) + (-3)
O How many yards did he gain the rest of the game to reach his total of 184?O 182 yards
TemperatureO The hottest temperature ever
recorded in the U.S. was 134°F, measured at Death Valley, California. The coldest temperature, -80°F was recorded at Prospect Creek, Alaska. What is the difference between these temperatures?
TemperatureO The hottest temperature ever
recorded in the U.S. was 134°F, measured at Death Valley, California. The coldest temperature, -80°F was recorded at Prospect Creek, Alaska. What is the difference between these temperatures?
O 134 – (-80) =O 134 + 80 = 214
HomeworkO Due on Thursday.
