1. Variables and Expressions
Objective: Students will write mathematical expressions for verbal expressions and write verbal expressions for mathematical expressions.
S.Calahan
2008

2. copyright 2006 www.brainybetty.com
Words to know
Variable – symbols used to represent unspecified numbers or values.
Algebraic expressions – one or more numbers and variables along with one or more arithmetic operations.
Factors – quantities being multiplied resulting in a product.
11/21/2018
copyright

3. copyright 2006 www.brainybetty.com
Words to know
Evaluate – to find its value.
Base- in the expression xn, x is the base
Exponent – in the expression xn, n is the exponent. The exponent indicates the number of times the base is used as a factor.
11/21/2018
copyright

4. copyright 2006 www.brainybetty.com
Adding Words
Plus
more
more than
sum
increased
11/21/2018
copyright

5. copyright 2006 www.brainybetty.com
Subtracting words
Minus
Difference
Decreased
Less than
less
11/21/2018
copyright

6. copyright 2006 www.brainybetty.com
Multiplication words
Times
Product Of
Cubed
Squared
twice
11/21/2018
copyright

7. copyright 2006 www.brainybetty.com
Division Words
Divide
Quotient
Ratio
11/21/2018
copyright

8. Write Algebraic Expressions
Eight more than a number n
More than suggest addition
A number leads to our variable n
8 + n
11/21/2018
copyright

9. 7 less than the product of 4 and a number x
Less implies subtraction and product implies multiply.
Less than tells us the 7 is subtracted
4x - 7
11/21/2018
copyright

10. One third of the size of the original area a
The word of implies multiply.
1 a or a
11/21/2018
copyright

11. Verbal expressions to algebraic expression
23f
Twenty-three times f
11/21/2018
copyright

12. copyright 2006 www.brainybetty.com
The product of 5 and m squared plus 2
Five times m squared increased by two
11/21/2018
copyright

13. copyright 2006 www.brainybetty.com
Four times a number squared divided by 7
One seventh of 4 times a n squared
11/21/2018
copyright