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 negative rational numbers?

Back

To add two negative rational numbers, you add their absolute values and keep the negative sign.

Front

What is the result of -6.5 + (-0.5)?

Back

-7

Front

How do you subtract a negative number from a negative number?

Back

Subtracting a negative number is the same as adding its absolute value.

Front

What is the sum of -1/3 and -1/6?

Back

-1/2

Front

What does the expression |a - b| represent?

Back

The expression |a - b| represents the distance between points a and b on the number line.

Front

What is the result of adding a positive number to a negative 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

How do you find the temperature if it decreases by a certain amount?

Back

Subtract the decrease from the original temperature.

Front

What is the result of -2 + 2?

Back

0

Front

What is the distance between -2 and 2 on the number line?

Back

|2 - (-2)| = |2 + 2| = 4