Substitute and Evaluate Expressions Without Negatives

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.

Front

Evaluate the expression: t² - t + 1 when t = 5

Back

21

Front

What is the value of 18 ÷ 2a when a = 3?

Back

3

Front

If x = 3 and y = 5, what is the value of x + y?

Back

8

Front

Evaluate n + 5² for n = 3.

Back

28

Front

If a = 4 and b = 6, what is the value of 3a + 5b?

Back

42

Front

What is a variable in mathematics?

Back

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

Front

What is the order of operations in mathematics?

Back

The order of operations is a set of rules that determines the sequence in which calculations are performed: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). Often abbreviated as PEMDAS.

Front

Evaluate the expression: 2x + 3 when x = 4.

Back

11

Front

What is the value of 5y - 2 when y = 2?

Back

8