Adding and Subtracting Rational Numbers

Front

When adding decimals with different signs, you...

Back

subtract and take the sign of the larger number.

Front

What is -13 - (-4)?

Back

-9

Front

What is −7.34 − (−5.51)?

Back

-1.83

Front

If the temperature was 3°C on Monday and was 7.5 degrees lower the next day, what was the temperature on Tuesday?

Back

-4.5°C

Front

What are numbers that are greater than zero and to the right of zero on the number line?

Back

Positive numbers.

Front

What is the result of adding a positive number and a negative number?

Back

The result depends on the absolute values; subtract the smaller from the larger and take the sign of the larger.

Front

What is the definition of a rational number?

Back

A number that can be expressed as a fraction of two integers.

Front

What is the result of -5 + 3?

Back

-2

Front

What is the result of 4 - 9?

Back

-5

Front

What is the rule for subtracting a negative number?

Back

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