Numerical Expressions

Front

What is a numerical expression?

Back

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

Front

What does the expression (6 x 3) x 2 ÷ 9 equal?

Back

4

Front

How do you represent 'Subtract 9 from 15 and divide by 3' as a numerical expression?

Back

(15 - 9) ÷ 3

Front

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

Back

Addition was done first and you should have subtracted first.

Front

What is the numeric expression for 'add four and nine and then multiply by six'?

Back

(4 + 9) x 6

Front

What does 3² mean?

Back

3 x 3

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 result of 8 ÷ 2 x 4?

Back

16 (because you perform division and multiplication from left to right).

Front

What is the difference between an expression and an equation?

Back

An expression is a combination of numbers and operations without an equal sign, while an equation states that two expressions are equal.

Front

How do you simplify the expression 10 - (3 + 2)?

Back

5 (first simplify inside the parentheses, then subtract).