1-5 Add and Subtract 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.

Front

How do you add two rational numbers with different signs?

Back

When adding two rational numbers with different signs, subtract the absolute values and take the sign of the number with the larger absolute value.

Front

What is the result of adding a positive rational number and a negative rational number?

Back

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

Front

How do you subtract rational numbers?

Back

To subtract rational numbers, add the opposite of the number being subtracted.

Front

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction.

Front

Calculate: (-3) + 5

Back

2

Front

Calculate: 4 + (-6)

Back

-2

Front

Calculate: (-2.5) + (-3.5)

Back

-6

Front

What is the difference between -7 and 3?

Back

-10

Front

What is the sum of -4.2 and 2.1?

Back

-2.1