Adding and Subtracting Rational Numbers

The numbers 0, 1, 2, 3, ... are called

• whole numbers
• integers
• rational numbers
• natural numbers

A rational number can be written as a fraction.

• True
• False

-10 is a whole number

• True
• False

0.8 is a rational number

• True
• False

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Find the difference of 7/10 - 9/10. Write your answer in simplest form. 

• 5
• -1/5
• -8/5
• 8/5

 ¼ − (-¾)= 

• -1/2
• 4/0
• 1
• None of the above

The temperature was 3 degrees F on Monday and was 7.5 degrees lower the next day. What was the temperature on Tuesday?

• 10.5 degrees
• 4.5 degrees
• -4.5 degrees
• -10.5 degrees

-16.75 - (-12.15)

• -3.90
• 3.90
• -28.90
• -4.60

Find  -6.23 + 7.5

• 13.73
• 1.27
• -1.27
• -13.73

Find the sum. Write your final answer in simplest form as an improper fraction

• -1 and 13/24 OR   -37/24
• -5 and 3/5 OR        -28/5
• -5 and 19/24 OR   -139/24
• -1 and 8/24    OR