Evaluate Expressions

Front

What is the order of operations in mathematics?

Back

The order of operations is a set of rules that determines the sequence in which calculations are performed. The acronym PEMDAS helps remember the order: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

Evaluate the expression: 12 - 4 x 2

Back

4

Front

If a = 3 and b = 4, evaluate the expression: 7a + 8b x 2

Back

85

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with their given values and performing the necessary operations.

Front

Evaluate the expression: 8a - b if a = 10 and b = 6

Back

74

Front

What is the result of (2 + 7 - 1) ÷ 2²?

Back

2

Front

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

Back

9

Front

What is a variable in mathematics?

Back

A variable is a symbol, often a letter, that represents a number that can change or vary.

Front

What is the difference between an expression and an equation?

Back

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

Front

Evaluate the expression: 5 + 3 x 2

Back

11