What is the rule for subtracting a negative number?

Subtracting a negative number is the same as adding its positive counterpart.

What is the sum of two negative rational numbers?

The sum of two negative rational numbers is always negative.

What happens when you add a positive and a negative rational number?

The result can be positive, negative, or zero, depending on the absolute values of the numbers.

What is the difference between $$-a - b$$ and $$-a + b$$ ?

$$-a - b$$ means you are subtracting b from -a, while $$-a + b$$ means you are adding b to -a.

What is the importance of the sign in front of a rational number?

The sign indicates whether the number is positive or negative, which affects the result of addition and subtraction.

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Math

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Adding And Subtracting Rational Numbers

Adding and Subtracting Rational Numbers

Flashcard

•

Mathematics

•

6th - 7th Grade

•

Practice Problem

•

Easy

Wayground Content

Used 1+ times

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15 questions

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FLASHCARD QUESTION

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.

FLASHCARD QUESTION

Front

What does it mean to add rational numbers?

Back

Adding rational numbers involves finding a common denominator if necessary and then combining the numerators.

FLASHCARD QUESTION

Front

What does it mean to subtract rational numbers?

Back

Subtracting rational numbers involves finding a common denominator if necessary and then subtracting the numerators.

FLASHCARD QUESTION

Front

What is the result of $-84 + 84$ ?

Back

FLASHCARD QUESTION

Front

What is $-8 - 11$ ?

Back

-19

FLASHCARD QUESTION

Front

What is $-23.4 - 3.4$ ?

Back

-26.8

FLASHCARD QUESTION

Front

What is $-18/3$ ?

Back

-6

FLASHCARD QUESTION

Front

What is $-8.76 - (-5.65)$ ?

Back

-3.11

FLASHCARD QUESTION

Front

How do you simplify $-a - b$ ?

Back

You can simplify it to $-(a + b)$ .

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