Evaluate mathematical 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

What does PEMDAS stand for?

Back

PEMDAS stands for Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

Evaluate: 13 - 3 + 5 ⋅ 12

Back

70

Front

Evaluate: 2 + 15 ÷ 3

Back

7

Front

Evaluate: 7 + 3² ⋅ 2

Back

25

Front

Evaluate: 26 - 4 ⋅ 3 + 5

Back

19

Front

Evaluate: (1 + 2) ⋅ 2

Back

6

Front

What is a mathematical expression?

Back

A mathematical expression is a combination of numbers, variables, and operators (such as +, -, ×, ÷) that represents a value.

Front

What is the difference between an expression and an equation?

Back

An expression is a mathematical phrase that does not include an equals sign, while an equation is a statement that two expressions are equal, indicated by an equals sign.

Front

What is the value of an exponent?

Back

An exponent indicates how many times a number (the base) is multiplied by itself. For example, 3² means 3 × 3.