Understanding Algebraic Expressions

Front

Translate this phrase into an algebraic expression: 5 more than twice a number (use h to represent the unknown number).

Back

2h + 5

Front

What is 2 raised to the power of 5?

Back

32

Front

Calculate: (5 × 7) - (10 + 8)

Back

17

Front

Translate this phrase into an algebraic expression: three times the difference of a number and 7.

Back

Front

Solve the following: (5 + 3 × 2) ÷ 4²

Back

1.25

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols.

Front

Define a variable in algebra.

Back

A variable is a symbol, often a letter, that represents an unknown value.

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with numbers.

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

Translate this phrase into an algebraic expression: the sum of a number and 10.

Back

x + 10