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1st Week Presentation_Cooperative Learning 20182019.notebook
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August 29, 2018
Aug 298:35 AM
Integer Notes
Interger word ProblemsWarm Up 9/49/7
123
8/298/308/319/44
Integer 1/2 Sheet Practice
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Aug 2812:49 PM Aug 2812:50 PM
Aug 2812:50 PM Aug 2812:50 PM
1st Week Presentation_Cooperative Learning 20182019.notebook
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August 29, 2018
Aug 2812:50 PM Aug 2812:50 PM
Aug 2812:51 PM Aug 2812:51 PM
Jul 177:57 AM
Now, for what youve been waiting for......
integers
Integers
practice
Integers are all whole numbers and their opposites. An integer can be any one of the following :
... -4, -3, -2, -1, 0, +1, +2, +3, +4, ...
Definition
1st Week Presentation_Cooperative Learning 20182019.notebook
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August 29, 2018
represent data
Use integers to represent data
practice
Integers can be used to represent real-world data.
temperature
finance elevation
games
Oct 31 1:33 PM
Write an integer to represent each situation:
12 degrees above zero
Samantha lost 20 pounds.
He walked backwards 44 paces.
The home team had zero points. 0
20
+12
44
Move boxes to check your answers
Oct 31 1:42 PM
Move boxes to check your answers12
48
+24
98
+63
What is the opposite of each integer listed below?
+12
+48
24
+98
63
Oct 31 3:12 PM
Since the larger absolute value was 22, we give the result the same sign as 22:(22) + 11 = 11
Rules for Adding Integers
The sum of two positive integers is a positive integer.Ex: (+2) + (+3) = +5
The sum of two negative integers is a negative integer.Ex: (2) + (4) = 6
When adding integers of the opposite signs, we take their absolute values, subtract the smaller from the larger, and give the result the sign of the integer with the larger absolute value.
Ex: 10 + (4)Absolute values: 10 and 410 4 = 6
Adding:
Ex: (22) + 11Absolute values: 22 and 11Subtract the smaller absolute value from the larger absolute value: 22 11 = 11
Nov 3 10:19 AM
Subtracting:
Rules for Subtracting Integers
Subtracting an integer is the same as adding its opposite.
Step 1: Write the equation:
Step 2: Convert the subtracted integer to its opposite:The subtracted integer is (5). The opposite number is (+5).
Step 3: Add the two integers:(+12) + (+5) = +17
(+12) (5) =
In the following example, we converted the subtracted integer to its opposite and added the two integers.
http://www.brainpop.com/math/numbersandoperations/addingandsubtractingintegers/
Aug 295:10 PM
Same sign add and keep,different signs; subtract,
Take the sign of the larger number, and you'll be exact.
Adding and Subtracting Integers
(To the tune of row, row, row, your boat)
Remember-a double negative = a positive (ex. 3 - -7 = 3 + 7)
