Evaluating Expressions

Front

Evaluate 3d if d = 5

Back

15

Front

Evaluate 5m + 7 if m = 5

Back

32

Front

Evaluate y + 17 if y = 11

Back

28

Front

Evaluate m - n if m = 29 and n = 11

Back

18

Front

Evaluate 5x + 4y if x=3 and y=2

Back

23

Front

What is an expression in mathematics?

Back

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

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting variables with numbers.

Front

What is a variable in mathematics?

Back

A variable is a symbol (like x or y) that represents an unknown value.

Front

What is the order of operations?

Back

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

Front

What is the value of x in the expression 2x + 3 = 11?

Back

4