math skill review

Front

What is a two-step equation?

Back

A two-step equation is an algebraic equation that requires two operations to solve for the variable. For example, in the equation 10x - 20 = 10, you first add 20 to both sides and then divide by 10.

Front

What is the first step to solve the equation 3w + 11 = 20?

Back

The first step is to subtract 11 from both sides to isolate the term with the variable.

Front

Solve for w: 3w + 11 = 20

Back

w = 3

Front

Gabrielle bought a pencil case for $2.65 and gave the clerk $3.00. How much change should she receive?

Back

Gabrielle should receive $0.35 as change.

Front

What is the result of -10 + 4?

Back

-6

Front

What does it mean to isolate a variable in an equation?

Back

Isolating a variable means to manipulate the equation so that the variable is on one side by itself, making it easier to solve.

Front

What is the solution to the equation 5x = 25?

Back

x = 5

Front

What is the purpose of using inverse operations in solving equations?

Back

Inverse operations are used to undo operations in an equation, helping to isolate the variable and solve for it.

Front

If 2x + 3 = 11, what is the value of x?

Back

x = 4

Front

What is the definition of a variable in mathematics?

Back

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