Subtracting Rational Numbers

Which expression is equivalent to:

-7 - 8

• -8 + 7

• -7 + 8

• -8 - (-7)

• -7 + (-8)

• -7 - (-8)

Tags

CCSS.7.NS.A.1B

Find an equivalent expression for:

-4 - (-2)

• -4 + 2

• -4 - 2

• 4 + 2

• 4 - 2

• -4 + (-2)

Tags

CCSS.7.NS.A.1B

-4 - 10 =

• -4

• 4

• 14

• -14

Tags

CCSS.7.NS.A.1C

-19 -10 =

• 9

• -9

• -29

• 29

Tags

CCSS.7.NS.A.1C

-13 - (-4) = 

• -9
• -17
• 9
• -8

Tags

CCSS.7.NS.A.1C

–8.24 – 6.59 =

• -14.83

• -1.65

• 1.65

• 14.83

Tags

CCSS.7.NS.A.1C

–12.45 − (–206.3) =

• -218.75

• -193.85

• 193.85

• 218.75

Tags

CCSS.7.NS.A.1C

6 3/4 - (-2 4/5) =

• 9 11/20

• -9 11/20

• 4 11/20

• -4 11/20

Tags

CCSS.7.NS.A.1C

A diver was 40 feet below the surface of the water. A fisherman was casting off a dock right above the diver that was 12 feet above the surface of the water. How far apart are the diver and the fisherman?

• 28 feet
• -28 feet
• 52 feet
• -52 feet

Tags

CCSS.7.NS.A.1C

At 2pm, the temperature was 15 degrees. By midnight, the temperature dropped by 30 degrees. What is the temperature at midnight?

• 45 degrees
• -45 degrees
• 15 degrees
• -15 degrees

Tags

CCSS.7.NS.A.1C