evaluate expressions by substitution

Front

Evaluate 4y if y = 3

Back

12

Front

Evaluate 2r + 1 if r = 3

Back

7

Front

Evaluate 5(v + 1) if v = 4

Back

25

Front

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

Back

12

Front

Evaluate 3x + 8 if x = 2

Back

14

Front

What does 'evaluate an expression' mean?

Back

To calculate the value of an expression by substituting the variables with given numbers.

Front

What is substitution in mathematics?

Back

Replacing a variable in an expression with a specific value.

Front

If x = 5, what is the value of 2x + 3?

Back

13

Front

Evaluate 7m - 4 if m = 2

Back

10

Front

What is the result of 10 - 2y if y = 1?

Back

8