October 7th-11th Adding/Subtracting Decimals

Kiera is snorkeling 1 meter below sea level and the dives down another 0.5 meters. How far below sea level is Kiera?

• 1.5 meters above sea level

• 1.5 meters below sea leves

• 0.5 meters above sea level

• 0.5 meters below sea level

The temperature on Sunday was -15^o C.  The temperature on Monday was 12 degrees less than the temperature on Sunday.  What was the temperature on Monday? 

• -27^o C
• 27^o C
• -3^o C
• 3^o C

Jaela withdrew $45 from her savings account. She then used her debit card to buy groceries for $30.15. What was the total amount Jaela took out of her account?

• $75.15

• $14.85

• $15.85

• $75

A submarine was situated 800 feet below sea level. If it ascends 350 feet, what is its new position?

• 450
• -450
• 1150
• -1150

From 10 meters below sea level, Reeny took off in his helicopter and ascended 100 meters. Which integer represents Reeny's elevation now?

• -90

• 90

• 110

• -110

In Buffalo, New York, the temperature was -14°F in the morning. If the temperature dropped 7°F, what is the temperature now?

• -7°F

• -21°F

• 7°F

• 21°F

Mount Nike is 20,300 feet above sea level. Reebok Valley is 490 feet below sea level. What is the difference between these two elevations?

• 19,675 feet

• 20, 790 feet

• 20,109 feet

• 19,810 feet

A diver is located 150 feet below sea level. The diver descends 30 feet. What is the diver's new location?

• 50 feet above sea level

• 130 feet below sea level

• 100 feet below sea level

• 180 feet below sea level

A submarine is 150 below sea level while an airplane is 375 above sea level.  What is the difference between the height of the submarine and the airplane?

• -525
• 525
• 325
• -325

The temperature on a cold winter day starts out at 10 degrees, but it drops rapidly 24 degrees due to a strong cold front moving in.  What is the current temperature?

• 14
• 34
• -14
• -34