Understanding Expressions and Equations

What is the main difference between an expression and an equation?

• An expression always contains an equals sign, while an equation does not.

• An equation shows equality between two expressions, while an expression does not have an equals sign.

• Both are the same and can be used interchangeably.

• An expression always has a variable, while an equation does not.

• Commutative Property

• Associative Property

• Distributive Property

• Identity Property

Tags

CCSS.6.EE.A.3

• Divide both sides by 2

• Subtract 5 from both sides

• Add 5 to both sides

• Multiply both sides by 2

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CCSS.7.EE.B.4A

Which of the following is a multi-step equation?

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CCSS.6.EE.B.7

When solving equations with decimals, what is a helpful first step?

• Ignore the decimals

• Multiply both sides by a power of 10 to eliminate decimals

• Add decimals to both sides

• Divide both sides by a decimal

Tags

CCSS.6.EE.B.7

What is an extraneous solution?

• A solution that makes the equation true

• A solution that does not satisfy the original equation

• A solution with no variables

• A solution that is always positive

Tags

CCSS.HSA.REI.A.2

How can you identify an extraneous solution?

• By checking if the solution makes the original equation true

• By guessing

• By choosing the largest number

• By always picking zero

Tags

CCSS.HSA.REI.A.2

What is a literal equation?

• An equation with only numbers

• An equation with only one variable

• An equation involving two or more variables

• An equation with no solution

Tags

CCSS.HSA.CED.A.4

Tags

CCSS.HSA.CED.A.4