Using substitution to evaluate expressions

Front

Evaluate m² if m = 5

Back

25

Front

6h + 30; Solve if h = 6

Back

66

Front

Find an equivalent expression to 4(2x + 10y)

Back

8(x + 5y)

Front

Evaluate 4y if y = 3

Back

12

Front

Evaluate the expression. Let g = 3, h = 9; 4g + 2h + 4

Back

34

Front

What is substitution in mathematics?

Back

Substitution is the process of replacing a variable with a number or another expression.

Front

What does it mean to evaluate an expression?

Back

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

Front

If x = 2, what is the value of 3x + 4?

Back

10

Front

What is an equivalent expression?

Back

An equivalent expression is a different expression that has the same value for all values of the variable.

Front

Evaluate 5a + 3 if a = 4

Back

23