Numerical Expressions

Front

What is a numerical expression?

Back

A numerical expression is a mathematical phrase that includes numbers and operations (such as addition, subtraction, multiplication, and division) but does not have an equal sign.

Front

How do you represent '9 less than 15 divided by 3' as a numerical expression?

Back

(15 - 9) ÷ 3

Front

What does 'two times the sum of eight and seven' mean in numerical expression?

Back

2 x (8 + 7)

Front

Evaluate the expression: (7 + 41) ÷ 2 – 15

Back

9

Front

What is the result of (16 - 6) x (2 + 4)?

Back

60

Front

Identify the error in the expression: 5 - 3 + 2 = 5 - 5 = 0

Back

Addition was done first and you should have subtracted first.

Front

What is the order of operations in mathematics?

Back

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

Front

What is the value of the expression: 3 x (4 + 5)?

Back

27

Front

How do you simplify the expression: 12 ÷ 4 + 3 x 2?

Back

The answer is 9.

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by performing the operations indicated.