Performing Operations on Integers · Example 1 Perform the indicated operations, expressing final...
Transcript of Performing Operations on Integers · Example 1 Perform the indicated operations, expressing final...
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Adding Integers
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Example 1 Evaluate. оϲн;оϭϰͿс
Adding Integers
0
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Example 2 Evaluate.
оϱнϭϮс
Adding Integers
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Example 3 Evaluate.
ϴн;оϮϬͿс
Adding Integers
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Subtracting Integers
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Subtracting Integers Change the subtraction symbol to addition, and change the sign of the number being subtracted. Example 1 Evaluate.
Ϯϯо;оϭϰͿ=
Subtracting Integers
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Example 2 Evaluate.
ϭϳоϮϲ=
Subtracting Integers
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Multiplying and Dividing Integers
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Example 1 Evaluate.
(a) оϴ;ϳͿс
(b) оϯ;оϵͿс
Multiplying and Dividing Integers
• The product of two numbers having the same sign is positive.
• The product of two numbers having different signs is negative.
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Example 2 Evaluate. (a)
(b)
Multiplying and Dividing Integers
• The quotient of two numbers having the same sign is positive.
• The quotient of two numbers having different signs is negative.
-24 с-6
50 с-25
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Order of Operations with Integers
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Example 1 Evaluate.
оϯ– 2(5 – ϭϬͿн;оϭϱͿс
Order of Operations with Integers
In order of appearance, from left to right
In order of appearance, from left to right
Parentheses Exponents Multiplication Division Addition Subtraction
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Example 2 Evaluate.
Order of Operations with Integers
2;ͲϯͿ Ͳϭϱ с6 + (-4)
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Order of Operations with Integers
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Example 1 Evaluate.
оϯ– 2(5 – ϭϬͿн;оϭϱͿс
Order of Operations with Integers
In order of appearance, from left to right
In order of appearance, from left to right
Parentheses Exponents
Multiplication Division Addition Subtraction
![Page 16: Performing Operations on Integers · Example 1 Perform the indicated operations, expressing final answer as a simplified fraction. Order of Operations with Fractions In order of appearance,](https://reader034.fdocuments.us/reader034/viewer/2022050119/5f4fb18f965d000a621f0a85/html5/thumbnails/16.jpg)
Example 2 Evaluate.
Order of Operations with Integers
2;ͲϯͿ Ͳϭϱ с6 + (-4)
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Simplifying Fractions
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Example Simplify. (a) (b)
Simplifying Fractions
2840
549
Divide the numerator and denominator by their greatest common factor to obtain an equivalent fraction in lowest terms.
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Adding and Subtracting Fractions
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Example 1 Perform the indicated operations, expressing final answer as a simplified fraction.
Adding and Subtracting Fractions 1. Rewrite the fractions, as needed, so that
they have a common denominator (i.e., a number that is divisible by all denominators).
2. Add or subtract numerators; keep the denominator the same.
4 1- =5 3
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Example 2 Perform the indicated operations, expressing final answer as a simplified fraction.
Adding and Subtracting Fractions
1 1+ =6 12
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Example 3 Perform the indicated operations, expressing final answer as a simplified fraction.
Adding and Subtracting Fractions
1 1+ =20 12
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Multiplying Fractions
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Example 1 Perform the indicated operations, expressing final answer as a simplified fraction.
Multiplying Fractions Multiply numerators; multiply denominators.
1 1 =4 3
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Example 2 Perform the indicated operations, expressing final answer as a simplified fraction.
Multiplying Fractions
2 5 =7 6
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Dividing Fractions
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Example 1 Perform the indicated operations, expressing final answer as a simplified fraction.
Dividing Fractions Rewrite the division symbol as multiplication, and rewrite the divisor as its reciprocal.
4 3÷ =3 2
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Example 2 Perform the indicated operations, expressing final answer as a simplified fraction.
Dividing Fractions
3 2÷ =7 7
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Example 3 Perform the indicated operations, expressing final answer as a simplified fraction.
Dividing Fractions
623
12
=
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Example 4 Perform the indicated operations, expressing final answer as a simplified fraction.
Dividing Fractions
74 =
15
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Order of Operations with Fractions
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Example 1 Perform the indicated operations, expressing final answer as a simplified fraction.
Order of Operations with Fractions
In order of appearance, from left to right
In order of appearance, from left to right
Parentheses (i.e., numerators and denominators separately) Exponents
Multiplication Division Addition Subtraction
4 -10 =4 10
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Example 2 Perform the indicated operations, expressing final answer as a simplified fraction.
Order of Operations with Fractions
1 1+ =3 - 5 3 + 5
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Example 3 Perform the indicated operations, expressing final answer as a simplified fraction.
Order of Operations with Fractions
§ ·¨ ¸© ¹
2 9- ÷ 3 =5 10
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Example 4 Perform the indicated operations, expressing final answer as a simplified fraction.
Order of Operations with Fractions
3 34 14-
=3
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Evaluating Expressions at Specified Values
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Example 1 >ĞƚĂсϳďсоϰĂŶĚĐсϮǀĂůƵĂƚĞƚŚĞĞdžƉƌĞƐƐŝŽŶďĞůŽǁĞdžƉƌĞƐƐŝŶŐĨŝŶĂůĂŶƐǁĞƌĂƐĂƐŝŵƉůŝĨŝĞĚŝŶƚĞŐĞƌ
Evaluating Expressions at Specified Values
Ϯď Ͳ ϰĂĐ с
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Example 2 >ĞƚƉсоϮƌсоϱĂŶĚƚсϮǀĂůƵĂƚĞƚŚĞĞdžƉƌĞƐƐŝŽŶďĞůŽǁĞdžƉƌĞƐƐŝŶŐĨŝŶĂůĂŶƐǁĞƌĂƐĂƐŝŵƉůŝĨŝĞĚĨƌĂĐƚŝŽŶ
Evaluating Expressions at Specified Values
ϮƉ ͲϮƚ =ƌ н ƚ