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

How do you add two 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 result of adding a positive and a negative rational number?

Back

If the rational numbers have different signs, subtract the absolute values and keep the sign of the number with the biggest absolute value.

Front

What is the sum of 100 and -100?

Back

0

Front

What is -80 + 90?

Back

10

Front

If you have 2.5 + 3.5, what is the sum?

Back

6.0

Front

What is the absolute value of -7?

Back

7

Front

What is the absolute value of 5?

Back

5

Front

If you add 4 and -4, what do you get?

Back

0

Front

What is the rule for adding rational numbers?

Back

Add the absolute values and apply the sign rules based on the signs of the numbers.