Numerical Expressions

Front

What do parentheses indicate in a numerical expression?

Back

Parentheses indicate that the operations inside them should be performed 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).

Front

In the expression (11 × 6) + 14, what should be calculated first?

Back

Multiply 11 by 6 before adding 14.

Front

In the expression [3 + 2(18 × 3)] – 21, what do the brackets indicate?

Back

Multiply 3 by 18 before multiplying by 2.

Front

In the expression 4 × [(25 × 5) + 12], what should be solved first?

Back

The brackets indicate that 25 × 5 should be solved first.

Front

In the expression 100 ÷ 20 + 7(84 – 6), what do the parentheses indicate?

Back

The parentheses indicate that 84 – 6 should be solved first.

Front

In the expression [2(5 + 17)] ÷ 11, what do the brackets indicate?

Back

The brackets indicate that 5 + 17 should be solved first.

Front

What is a numerical expression?

Back

A numerical expression is a mathematical phrase that includes numbers and operations but does not have an equal sign.

Front

What does it mean to evaluate an expression?

Back

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

Front

What is the difference between brackets and parentheses in expressions?

Back

Brackets [ ] and parentheses ( ) both indicate the order of operations, but they can be used interchangeably in many contexts.