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# Virtual School Gr7-CIC. Warm Up - Simplify expression Evaluate expressions Algebra vocabulary.

## Presentation on theme: "Virtual School Gr7-CIC. Warm Up - Simplify expression Evaluate expressions Algebra vocabulary."— Presentation transcript:

Virtual School Gr7-CIC

Warm Up - Simplify expression Evaluate expressions Algebra vocabulary

Although they are closely related, a Great Dane weighs about 40 times as much as a Chihuahua

An expression for the weight of the Great Dane could be 40c, where c is the weight of the Chihuahua.

Although they are closely related, a Great Dane weighs about 40 times as much as a Chihuahua An expression for the weight of the Great Dane could be 40c, where c is the weight of the Chihuahua. When solving real-world problems, you will need to translate words, or verbal expressions, into algebraic expressions.

Word phrases can be written as algebraic expressions.

Use a variable for the phrase a number or unknown value.

Word phrases can be written as algebraic expressions. Use the words to determine what operation you are using. Use a variable for the phrase a number or unknown value.

In order to translate a word phrase into an algebraic expression, we must first know some key word phrases for the basic operations.

In your notebook/notes: AdditionSubtraction MultiplicationDivision

Addition Phrases: More than Increase by Greater than Add Total Plus Sum

Subtraction Phrases: Decreased by Difference between Take Away Less Subtract Less than* Subtract from*

Multiplication Phrases: Product Times Multiply Of Twice or double Triple

Division Phrases: Quotient Divide Divided by Split equally

Notes Multiplication expressions should be written in side- by-side form, with the number always in front of the variable. 3a 2t 1.5c 0.4f

Notes Division expressions should be written using the fraction bar instead of the traditional division sign.

Lets try it. 3 more than x

Lets try it. the product of 3 and a number t

Lets try it. the difference between 10 and a number y

Lets try it. the quotient of 25 and a number b

Lets try it. 32 less than 5 times c

Independent Practice 1.2.5 divide g 2.4.2 times a number e 3.the sum of 10 and a number c 4.a number t decreased by 4 5.6 less than a number z 6.twice the number x 7.the number y divided by 2 8.a number n increased by 4.5

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