What is the correct order of operations when solving a math expression?

Parentheses, Exponents, Multiplication/Division (left to right), Addition/Subtraction (left to right) — remembered by PEMDAS.

What is the result of multiplying two negative numbers?

The result is always a positive number. A negative times a negative equals a positive.

How do you convert a fraction to a percent?

Divide the numerator by the denominator, then multiply the result by 100 and add a percent sign.

What does the absolute value of a number represent?

The absolute value represents a number's distance from zero on the number line, always expressed as a non-negative value.

What is a rational number?

A rational number is any number that can be expressed as a fraction p/q, where p and q are integers and q ≠ 0.

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