Operations with Rational Numbers

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

What is the result of subtracting a negative number from a negative number?

Back

Subtracting a negative number is equivalent to adding its absolute value.

Tags

CCSS.7.NS.A.1C

Front

What is the product of two negative numbers?

Back

The product of two negative numbers is positive.

Tags

CCSS.7.NS.A.2A

Front

What is the product of a negative number and a positive number?

Back

The product of a negative number and a positive number is negative.

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

Front

How do you determine the sign of a product involving multiple numbers?

Back

Count the number of negative factors: if the count is even, the product is positive; if odd, the product is negative.

Tags

CCSS.3.OA.D.9

Front

What is the difference between two negative numbers?

Back

The difference between two negative numbers can be found by subtracting their absolute values.

Tags

CCSS.7.NS.A.1C

Front

What is the result of adding a positive number to a negative number?

Back

The result depends on the absolute values: if the positive number is larger, the result is positive; if the negative number is larger, the result is negative.

Tags

CCSS.7.NS.A.1C

Front

How do you perform operations with rational numbers?

Back

To perform operations with rational numbers, follow the rules of arithmetic: addition, subtraction, multiplication, and division, while paying attention to the signs.

Tags

CCSS.7.NS.A.1D

Front

What is the result of -8 - (-4)?

Back

The result is -4.

Tags

CCSS.7.NS.A.1C

Front

What is the result of -2 × (-5) × (-1) × (-9)?

Back

The result is positive.

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B