Unit 4 Part 2 Add and Subtract Rational Numbers Review

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 denominators?

Back

To add two rational numbers with different denominators, find a common denominator, convert each fraction, and then add the numerators.

Front

What is the rule for adding two negative numbers?

Back

When adding two negative numbers, the result is always negative.

Front

What is the rule for subtracting a negative number from a positive number?

Back

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

Front

Back

Front

What is the sum of 5.37 and -6.1?

Back

The sum is -0.73.

Front

What is the difference between 16.2 and 9.73?

Back

The difference is 6.47.

Front

How do you subtract two rational numbers?

Back

To subtract two rational numbers, find a common denominator, convert each fraction, and then subtract the numerators.

Front

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

Back

The result depends on the absolute values; 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 result of adding two decimals, such as -4.68 and -1.24?

Back

The result is -5.92.