Adding and Subtracting Rational Numbers Explained

What is a rational number?

• A number that is always negative

• A number that can be written as a ratio of two integers

• A number that cannot be written as a fraction

• A number that is always positive

What is the result of 5/10 + (-7/10)?

• -2/10

• 2/10

• -1/5

• 1/5

How do you simplify the fraction 2/10?

• 1/10

• 2/5

• 1/5

• 2/1

What is the result of -3/8 - 2/8?

• 1/8

• -1/8

• 5/8

• -5/8

What is the common denominator for -1/3 + 5/6?

• 3

• 6

• 9

• 12

What is the result of -1/3 + 5/6?

• 1/2

• 1/3

• -1/3

• -1/2

What is the result of -8.2 + 9.1?

• 0.9

• -0.9

• 1.1

• -1.1

What happens when you subtract a negative number?

• It becomes zero

• It becomes a positive number

• It remains the same

• It becomes a larger negative number

What is the result of 4.5 - (-3.7)?

• 0.8

• -8.2

• 8.2

• -0.8

What is the result of -2.3 + (-1.6)?

• -3.9

• 3.9

• -0.7

• 0.7