Adding and Subtracting rational Numbers

Front

Evaluate: −3 − (−4) − (−2) + 1

Back

4

Front

If the temperature in Chicago is -5 degrees and the temperature in Moscow is 8 degrees colder. What is the temperature in Moscow?

Back

-13 degrees

Front

The temperature outside was 15 degrees. It dropped to -12 degrees at night. How much did the temperature change?

Back

-27 degrees

Front

Tell whether this sentence is always true, sometimes true, or never true: negative - positive = negative

Back

always true

Front

Following the integer rules, would you add or subtract the fractions?

Back

add, the answer would be negative

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

What is the rule for adding two negative numbers?

Back

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

Front

What happens when you subtract a negative number from a positive number?

Back

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

Front

What is the result of adding 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

How do you find 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.