Evaluate Expressions

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to find its value by substituting numbers for the variables and performing the operations.

Front

If a = 2 and b = 5, what is b x 4?

Back

20

Front

What is the first step to evaluate (x + y) ÷ 2 if x = 14 and y = 6?

Back

Add x and y: 14 + 6 = 20.

Front

What is the value of (x + y) ÷ 2 if x = 14 and y = 6?

Back

10

Front

What operation should you perform first in the expression (8 x 2) ÷ 4?

Back

8 x 2.

Front

In the expression 7 + 4 x 2, which operation should you solve first?

Back

4 x 2.

Front

What is the total number of swings if there are 5 swing sets and each has v swings, where v = 3?

Back

15 swings (5 x 3 = 15).

Front

What is the order of operations?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

What is the value of 5 + 3 x 2?

Back

11 (because you do the multiplication first: 3 x 2 = 6, then add 5).

Front

If x = 10, what is the value of 2x + 5?

Back

25 (2 x 10 + 5 = 20 + 5).