Expressions and Equations

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.

Tags

CCSS.6.EE.A.2B

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing an equal sign (=).

Tags

CCSS.6.EE.A.2C

Front

Evaluate the expression: 3c + 7d if c = 3 and d = 2.

Back

23

Tags

CCSS.6.EE.A.2C

Front

Maria has 25 dollars. She buys a gallon of milk for $3.50. How many boxes of cereal can she buy if each costs $4.50?

Back

4 boxes

Tags

CCSS.7.EE.B.3

Front

What is the first step to solve the equation: 11 - 3x = 44?

Back

Subtract 11 from both sides.

Tags

CCSS.7.EE.B.4A

Front

Evaluate the expression: 15f - 60 if f = 5.

Back

15

Tags

CCSS.6.EE.A.2C

Front

Solve for z in the equation: 6z + 3 - 4z = 9.

Back

z = 3

Tags

CCSS.8.EE.C.7B

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with their given values.

Tags

CCSS.6.EE.A.2C

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac, meaning you can distribute a factor across a sum.

Tags

CCSS.6.EE.A.3

Front

What is a variable in mathematics?

Back

A variable is a symbol (often a letter) that represents an unknown value in an expression or equation.

Tags

CCSS.6.EE.A.2B