Equations, Properties and Inequalities Review

Unit 6

6th Grade Math

Rules for review• Use a white board (or piece of paper ) to

work out the problems and display your answer

• Show work when required

• Circle your answer

• Each slide will have one question followed by the answer

• Let’s begin!!

Which of the following equations represents the Associative Property of Multiplication?

a. 3 * 29 = 29 * 3b. 29 * 1 = 29 c. (3 * 29) * 8 = 3 * (29 * 8)

Which of the following equations represents the Additive Inverse Property?

a. 67 + 9 = 9 + 67b. 67 + (-67) = 0c. (67 + 9) + 18 = 67 + (9 + 18)

Which of the following equations represents the Multiplicative Identify Property?

a. 45 * 0 = 0b. 45 * 2 = 2 * 45c. 45 * 1 = 45

Which of the following equations represents the Additive Identify Property?

a. 35 + 0 = 35b. 35 + (-35) = 0c. 35 + 18 = 18 + 35

Which of the following equations represents the Associate Property of Addition?

a. 67 + 9 = 9 + 67b. 67 + (-67) = 0c. (67 + 9) + 18 = 67 + (9 + 18)

Which of the following equations represents the Commutative Property of Multiplication?

a. (5 * 7) * 3 = 5 * (7 * 3)b. 35 * 7 = 7 * 35c. 5 * 1 = 5

Which of the following equations represents the Commutative Property of Addition?

a. 67 + 9 = 9 + 67b. 67 + (-67) = 0c. (67 + 9) + 18 = 67 + (9 + 18)

Which of the following equations represents the Multiplicative Inverse of Multiplication?

a. 4 * ¼ = 1 b. 4 * 0 = 0c. 4 * 5 = 5 * 4

What is the difference between using an open circle and closed circle when graphing and inequality.

The open circle is used when

graphing with a <, >, and and indicates the set of numbers will NOT include that number and the closed circle is used when graphing with , and will include that number.

Write out the inequality that represents the graph. Use x as the variable.

x -2

Write out the inequality that represents the graph. Use x as the variable.

x < -1

Solve the following equation

78 = x + 13

Solve the following equation

78 = x + 13-13 - 13

65 = x x = 65

Solve the following equation

78 = x + 13

Solve the following equation

y – 14 = 25 +14 +14 y = 39

Solve the following equation

7y = 63

Solve the following equation

7y = 63 7 7

y = 9

Solve the following equation

5y = 7

Solve the following equation

5y

* 75 5= *

y = 35

7x + 6y - 3 = 68

Is the following math statement an expression, equation or inequality?

7x + 6y - 3 = 68

It is an equation because it has an = sign

7x + 6y - 3

Is the following math statement an expression, equation or inequality?

4x + 7y - 25

It is an expression because it does NOT have an = sign or < > sign.

3x + 5 - 2y

What is the constant in the expression above?

3x + 5 - 2y

The constant is

3x + 5

What is the variable in the expression above?

3 x + 5

The variable is

3x + 5

What is the coefficient in the expression above?

3 x + 5

The coefficient is

3x + 5

What is the constant in the expression above?

3 x + 5

The constant is