Writing Algebraic Expressions - Level 1

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables (like x or y), and operations (like addition, subtraction, multiplication, and division).

Front

What does 'twenty times a number' mean in algebraic terms?

Back

It means to multiply a number (represented by a variable, like x) by 20, which is written as 20x.

Front

How do you express 'the difference of a number and six' in algebra?

Back

It is expressed as x - 6, where x is the number.

Front

What does 'a number increased by two' mean in algebraic form?

Back

It means to add 2 to a number, written as x + 2.

Front

How is 'seven less than a number' represented in algebra?

Back

It is represented as x - 7.

Front

What does 'the difference of two and a number' mean in algebra?

Back

It means to subtract a number from 2, written as 2 - x.

Front

What is the variable in an algebraic expression?

Back

A variable is a symbol (usually a letter) that represents an unknown number.

Front

What does it mean to evaluate an algebraic expression?

Back

To evaluate an algebraic expression means to substitute the value of the variable and perform the operations to find the result.

Front

What is the coefficient in the expression 5x?

Back

The coefficient is the number in front of the variable, which is 5 in this case.

Front

What does 'x + 3' represent?

Back

It represents a number (x) increased by 3.