evaluate expressions by substitution

Front

Evaluate when a = 10: 2(a - 5) + 2

Back

12

Front

Evaluate when v = 4: 5(v + 1)

Back

25

Front

Evaluate m² when m = 5

Back

25

Front

Evaluate when y = 2: 7y - 3y

Back

8

Front

Evaluate when y = 6: 4y - 5

Back

19

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

Back

10

Front

If p = 7, what is the value of 3p - 2?

Back

19

Front

Evaluate when z = 1: 5z + 3z

Back

8