Unit 2 Test-Adding & Subtracting Rational Numbers

Front

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

Back

The result is the difference between the two numbers, with the sign of the larger absolute value.

Front

What is the sum of -7.8 and -0.8?

Back

-8.6

Front

How do you simplify the expression 10 + 3 - (-8)?

Back

You add 10 + 3 + 8 = 21.

Front

What is the result of adding two negative numbers, such as -14 and -3?

Back

The result is -17.

Front

What is the definition of a rational number?

Back

A rational number is any number that can be expressed as a fraction a/b, where a and b are integers and b is not zero.

Front

What does it mean to subtract a negative number?

Back

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

Front

What is the result of 15 + (-25)?

Back

-10

Front

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

Back

You move left from zero for both numbers.

Front

What is the result of -10 + 15?

Back

5

Front

What is the rule for adding two rational numbers with different signs?

Back

Subtract the smaller absolute value from the larger absolute value and take the sign of the number with the larger absolute value.