Rational Numbers Operations Flashcard

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.

Tags

CCSS.5.NBT.A.2

Front

How do you calculate a percentage discount?

Back

To calculate a percentage discount, multiply the original price by the discount percentage (as a decimal) and subtract that amount from the original price.

Tags

CCSS.6.RP.A.3C

Front

What is the formula for finding the total diameter of multiple objects?

Back

To find the total diameter of multiple objects, multiply the diameter of one object by the number of objects.

Tags

CCSS.4.MD.A.2

Front

How do you divide fractions?

Back

To divide fractions, multiply the first fraction by the reciprocal of the second fraction.

Tags

CCSS.6.NS.A.1

Front

What is the product of two decimal numbers?

Back

The product of two decimal numbers is found by multiplying them as whole numbers and then placing the decimal point in the result based on the total number of decimal places in the factors.

Tags

CCSS.6.NS.B.3

Front

What is the result of dividing a negative number by a positive number?

Back

The result of dividing a negative number by a positive number is always negative.

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

Front

What is the result of dividing a positive number by a negative number?

Back

The result of dividing a positive number by a negative number is always negative.

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

Front

What is the result of dividing two negative numbers?

Back

The result of dividing two negative numbers is always positive.

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

Front

How do you convert a mixed number to an improper fraction?

Back

To convert a mixed number to an improper fraction, multiply the whole number by the denominator, add the numerator, and place that result over the original denominator.

Front

What is the process for multiplying fractions?

Back

To multiply fractions, multiply the numerators together and the denominators together.

Tags

CCSS.5.NF.B.6