2.3 Adding Integers & 2.4 More on Adding Integers2.3 Adding Integers & 2.4 More on Adding Integers September 08, 2020
Adding Integers with the Same Signs
To add integers with the same sign, ADD their
absolute values.
Adding Integers with the Same Signs
Positive + Positive = Positive Answer
Negative + Negative = Negative Answer
2.3 Adding Integers & 2.4 More on Adding Integers September 08, 2020
Adding Integers with the Same Signs
#1.) -2 + -4 =
#2.) +9 + +7 =
#3.) -11 + -18 =
#4.) -27 + (-43) =
To add integers with different signs, SUBTRACT
their absolute values.
Give the result the same sign as the integer with the greater absolute value.
2.3 Adding Integers & 2.4 More on Adding Integers September 08, 2020
Adding Integers with Different Signs
#1.) -9 + 15 =
#2.) 7 + (-10) =
#3.) -48 + 33 =
#4.) 67 + (-43) =
2.4 (Page 63) More on Adding Integers
2.3 Adding Integers & 2.4 More on Adding Integers September 08, 2020
Examples: Solve each expression.
-17 + 36 + (-45)
2.3 Adding Integers & 2.4 More on Adding Integers September 08, 2020
Examples: Solve each expression.
Examples: Solve each expression.
-11 + 10 + (-7) + 9
2.3 Adding Integers & 2.4 More on Adding Integers September 08, 2020
Examples: Solve each expression.
28 + (-56) + 32 + (-75)
Combining Like Terms Terms - the parts that are being added or subtracted
Coefficient - the number in front of the variable
Like Terms - MUST have the same variable(s)
For Example: 5y & -3y 2y & 9x
Constant Terms - numbers without variables
2.3 Adding Integers & 2.4 More on Adding Integers September 08, 2020
Simplify each expression:
21y + (-30y) + 15y
Simplify each expression:
67m + (-52m) + (-34m)
2.3 Adding Integers & 2.4 More on Adding Integers September 08, 2020
Simplify each expression:
-4x + (-8x) + (-41x)
Simplify each expression:
5x + (-21x)
2.3 Adding Integers & 2.4 More on Adding Integers September 08, 2020
Simplify each expression:
Simplify each expression:
16d + (-9d) + (-27d)
2.3 Adding Integers & 2.4 More on Adding Integers September 08, 2020
Simplify each expression:
-4f + (-6f) + (-19f)
Simplify each expression:
2.4 Simplifying Expressions with Like Terms.notebook
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Example #1 Combining Like Terms Terms - the parts that are being added or subtracted Coefficient - the number in front of the variable Like Terms - MUST have the same variable(s) For Example: 5y & -3y 2y & 9x Constant Terms - numbers without variables
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Examples: Solve each expression. 10 + 22 + (-7) + (-31) 2.4 (Page 63) More on Adding Integers
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