Evaluating Expressions

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, *, /) 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 the variables with their given values.

Front

Evaluate 2y when y = 8.

Back

16

Front

Evaluate 5m + 7 if m = 5.

Back

32

Front

Evaluate 4y if y = 3.

Back

12

Front

Evaluate 2a + 4b if a = 10 and b = 6.

Back

44

Front

Evaluate 6y - 13 if y = 4.

Back

11

Front

What is the value of x in the expression 3x + 2 when x = 4?

Back

14

Front

If a = 2 and b = 3, what is the value of 5a + 2b?

Back

19

Front

What is the result of evaluating 10 - 2y when y = 3?

Back

4