Rational Number Operations - Open Up Unit 5

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

What is the formula to calculate velocity?

Back

Velocity = Distance / Time.

Front

What is the product of two negative numbers?

Back

The product of two negative numbers is a positive number.

Front

How do you evaluate an expression with multiple operations?

Back

Follow the order of operations: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting numbers for variables and performing the operations.

Front

What is the result of dividing two negative numbers?

Back

The result of dividing two negative numbers is a positive number.

Front

How do you calculate change after a purchase?

Back

Change = Amount Paid - Total Cost.

Front

What is the value of -54 ÷ -6?

Back

9.

Front

What is the significance of a negative sign in front of a number?

Back

A negative sign indicates that the number is less than zero, representing a loss or a decrease.

Front

What is the formula for calculating total cost?

Back

Total Cost = Price per Item x Number of Items.