Substitute and Evaluate Expressions

Front

Evaluate -2x + -3y if x = 10 and y = -6

Back

-2

Front

Evaluate 13y - zx ÷ 4 if x=7, y=15, z=8

Back

181

Front

What is (3 + 4)² - 32?

Back

17

Front

What is the value of 3x² - 7 when x = -5?

Back

68

Front

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

Back

42

Front

What does it mean to evaluate an expression?

Back

To calculate the value of an expression by substituting values for the variables.

Front

What is the order of operations in mathematics?

Back

PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

How do you substitute values in an expression?

Back

Replace each variable in the expression with its corresponding value.

Front

What is the value of 5x + 2 when x = 3?

Back

17

Front

Evaluate 4(x + 2) when x = 5.

Back

28