7th grade Expressions, equations, and inequalities

An inverse operation is

• reversing the sign in an inequality
• using the opposite operation to solve equations
•  A number’s distance from zero

Tags

CCSS.HSA.REI.A.1

Like terms are 

• numbers or same variable raised to the same power
• equal numbers
• only unknown values

Tags

CCSS.6.EE.A.2B

One difference between equations and expressions would be...

• you solve both of them using inverse operations.
• you flip the symbol when you multiply or divide by a negative
• equations have an equals because they show two equal expressions. Expresions have terms and operations.

Tags

CCSS.HSA.REI.A.1

When solving an inequality, what is the main things that are different from solving equations.

• Draw the line
• Use inverse operations to solve.
• Bring down the inequality symbol and FLIP the symbol  when you multiply or divide by a negative.

Tags

CCSS.6.EE.B.8

When solving an inequality, what are the main things that are different from solving equations.

• Draw the line
• Use inverse operations to solve.
• Bring down the inequality symbol and FLIP the symbol  when you multiply or divide by a negative.

Tags

CCSS.6.EE.B.5

Choose an expression that is equivalent to the following
6n + 2(3 - 5n)

• n + 6
• 6 - 4n
• 16n + 6

Tags

CCSS.6.EE.A.4

Choose the first step in solving the following equation.
-3y - 12 = 14

• add 3 from both sides
• add 12 to both sides
• subtract 12 from both sides

Tags

CCSS.HSA.REI.A.1

0.1( x - 20 ) > 2

• x > 40
• x < 40
• x > 220

Tags

CCSS.7.EE.B.4B

Given an equilateral triangle with a side length of 4 + 2y. Find the perimeter.

• (4 + 2y)/ 3
• 4/3  +2y/3
• 3(4 + 2y)

Tags

CCSS.7.EE.A.1

The perimeter of an equilateral triangle is 18y - 6.  What is the length of one side of the triangle?

• 6y - 2
• 54y -18
• 3(18y -6)

Tags

CCSS.6.EE.B.7