Adding 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

What is the sum of two negative rational numbers?

Back

The sum of two negative rational numbers is always negative.

Front

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

Back

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

Front

What is the rule for adding rational numbers with the same sign?

Back

If the rational numbers have the same signs, add the absolute values and keep the common sign.

Front

What is the rule for adding rational numbers with different signs?

Back

If the rational numbers have different signs, subtract the smaller absolute value from the larger absolute value and take the sign of the number with the larger absolute value.

Front

Calculate: -2 + (-3)

Back

-5

Front

Calculate: 5 + (-8)

Back

-3

Front

Calculate: -4.5 + (-2.5)

Back

-7.0

Front

Calculate: -10 + 10

Back

0

Front

Calculate: -6 + 4

Back

-2