Download presentation

1
**Variables and Expressions**

Lesson 11 Variables and Expressions

2
**Review! Vocabulary Variable:**

a symbol used to represent numbers or values. Algebraic Expression: one or more numbers and variables with one or more arithmetic operations

3
**What do expressions look like?**

Here are some examples 5x 3c – 7 4 + p/2 Can you give some examples?

4
**Writing Expressions - Adding**

Add 9 and 3 9 + 3 The sum of x and 4 x + 4 x more than -2 (switch) -2 + x 8 plus y 8 + y Can you think of any other words that are the same as adding??

5
**Writing Expressions - Subtracting**

Subtract x from y y – x Subtract x and y x – y The difference of c and 4 c – 4 5 less than t (switch) t – 5 8 minus y 8 – y Can you think of any other words that are the same as subtracting??

6
**Writing Expressions - Multiplying**

Multiply -4 and h -4h The product of 3x and 7 7(3x) 9t multiplied by -3z 9t(-3z) 8c times -2y (8c)(-2y) Can you think of any other words that are the same as multiplying??

7
**Writing Expressions - Dividing**

Divide 8x and 6y 8x ÷ 6y The quotient of 9 and 3x 9 ÷ 3x 5y divided by -2 5y ÷ -2 Can you think of any other words that are the same as dividing??

8
**Writing Expressions - Exponents**

A number squared y2 The cube (or third power) of a number 3x3 Can you think of any other words that are used for exponents??

9
**Write the expression for the following **

PRACTICE TIME! Write the expression for the following The sum of a x and 3 times y squared 5 decreased x to the third power The quotient of 5 plus y and 3 decreased by x 8x + 2 3 ÷ 2y2

Similar presentations

OK

1.1 Variables and Expressions In the algebraic expression 4s, the letter s is called a variable. In algebra, variables are symbols used to represent unspecified.

1.1 Variables and Expressions In the algebraic expression 4s, the letter s is called a variable. In algebra, variables are symbols used to represent unspecified.

© 2018 SlidePlayer.com Inc.

All rights reserved.

To ensure the functioning of the site, we use **cookies**. We share information about your activities on the site with our partners and Google partners: social networks and companies engaged in advertising and web analytics. For more information, see the Privacy Policy and Google Privacy & Terms.
Your consent to our cookies if you continue to use this website.

Ads by Google

Ppt on as 14 amalgamation process Ppt on terrorism in hindi language Ppt on bluetooth technology download Ppt on history of badminton rules Ppt on misinterpretation of data Ppt on p&g products promotion Ppt on inertial frame of reference Ppt on acute coronary syndrome treatment Ppt on law against child marriage in yemen Ppt on happy new year 2013