Adding and Subtracting Rational Numbers

Front

What do you do when adding rational numbers with the same sign?

Back

Add together and keep the sign.

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction, where both the numerator and the denominator are integers.

Front

How do you subtract rational numbers?

Back

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

Front

What is the opposite of a number?

Back

The opposite of a number is the number that is the same distance from zero on the number line but in the opposite direction.

Front

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

Back

You subtract the absolute values and keep the sign of the number with the larger absolute value.

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

When adding rational numbers with different signs, what is the first step?

Back

Find the absolute values of both numbers.

Front

If you have 3/4 + (-1/4), what is the result?

Back

The result is 2/4, which simplifies to 1/2.

Front

What is the sum of -2/3 and -1/3?

Back

The sum is -3/3, which simplifies to -1.

Front

How do you represent the addition of rational numbers on a number line?

Back

You start at the first number and move to the right for positive numbers or to the left for negative numbers.