ILC Unit 6 - 6th grade: vocab. expressions, equations, exponents, distributive property

VOCABULARY

100

A combination of operations, numbers and variables (letters) with no equal sign is known as an _________.

Expression

200

A mathematical  statement where two expressions are equal (indicated by the sign =).

Equation

300

Another word for numbers used in expressions and equations that don't change in value. 

NUMBERS that stand ALONE

Constant

400

Another word for the letters used in expressions and equations.

Variable

500

What is the number called that is being multiplied by the variable?

Ex.:    5x   what is the "5" called?

Coefficient

Writing Expressions/Equations

100

The sum of y and 85 

y + 85 

200

43 less than h 

h - 43 

300

The product of c and 23 is 322

23c = 322

400

The quotient of x and 15 is 2

x/15 = 2

500

The product of a number y and 27 is 243

27y = 243

Solving : One step Equations

100

Solve for x:

10x = 30

x=3

200

x/3 = 15

x=45

300

x + 5 = 22

x = 17

400

x - 34 = 200

x = 234

500

1/5 x = 100

x = 500

Like Terms and Distributive Property

100

USE DISTRIBUTIVE PROPERTY TO FIND AN EQUIVALENT EXPRESSION.

3(x+2)

3x + 6

200

Simplify the following expression by combining like terms. 

x + 2y + x + 5y + 1 + 1 

2x + 7y + 2

300

Find the greatest common factor  and create an equivalent expression:  3x - 9

 3(x - 3)

400

USE DISTRIBUTIVE PROPERTY TO FIND AN EQUIVALENT EXPRESSION. (Find something the terms have in common and factor it out)

10y + 25

5(2y+5)

500

Simplify the following expression by combining like terms. 

9 + 7x +11 - x

20 + 6x or 6x+20

Evaluate Expressions

100

Using Order Of Operations : Evaluate the following expression.

3 + 2 x 4 - 5 

6

200

Evaluate  the following expression when x = 5

 15 - 1 +3x

29

300

Evaluate  the following expression when x = 10

7 + 4x - 6/2

44

400

Evaluate the following expression  when x=4

16/x + 5(2)

14

500

5³

^{Write what this means and then tell what its value is}

5 x 5 x 5

125