Math Challenge #13

Front

Use the order of operations to evaluate: 18 + 2 x 4

Back

26

Front

What is a coefficient in an algebraic expression?

Back

A coefficient is a numerical factor that multiplies a variable. For example, in 6c + 2d, 6 and 2 are coefficients.

Front

Identify the variables in the expression: 7a + 9b

Back

The variables are a and b.

Front

What type of relationship is shown when one variable increases and the other decreases?

Back

Negative relationship.

Front

Identify the variable in the expression: 2d - 6

Back

The variable is d.

Front

What is the order of operations in mathematics?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often abbreviated as PEMDAS.

Front

Evaluate: 5 + 3 x 2

Back

11

Front

What is a variable in algebra?

Back

A variable is a symbol used to represent an unknown value, often denoted by letters such as x, y, or z.

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to reduce it to its simplest form by combining like terms and performing operations.

Front

Evaluate: (3 + 5) x 2

Back

16