subtracting integers

Cara monitors a snail in her aquarium. She notes that this morning it crawled 1" up the glass. A few hours later, it crawled another 2" up the glass. Later, it crawled 4" down the glass. How far is the snail from where it started?

• 1" below where it started

• 3" above where it started

• 1" above where it started

• 2" below where it stared

Henry starts the day with $30. He and his sister go to the fair. He pays for his own admission of $10, but fails to notice that $15 falls out of his wallet while he is paying. His sister lends him $10 so that he can still enjoy the fair. Write the equation that illustrates his day's financial events.

• 30 - 10 - 5 + 10 =

• 30 - 15 + 10 =

• 30 - 10 - 15 + 10 =

• 30 + 10 - 15 =

At midnight, the temperature was 30 degrees. By 6:00 a.m, it had dropped 5 degrees, and by noon, it had increased by 11 degrees. What was the temperature at noon? 

• 36 degrees

• 27 degrees

• 39 degrees

• 16 degrees

An airplane started at 0 feet. It rose 21,000 feet at takeoff. It then descended 4,329 feet because of clouds. An oncoming plane was approaching, so it rose 6,333 feet. After the oncoming plane passed, it descended 8,453 feet, at what altitude was the plane flying?

• 16,732 feet

• 13,736 feet

• 14,551 feet

• 15,332 feet

The first play of a football game resulted in a loss of 12 yards.  Then a penalty resulted in another loss of 5 yards.  What is the total loss or gain?

• a gain of 7 yards
• a loss of 7 yards
• a gain of 17 yards 
• a loss of 17 yards

Jack and Jill are going up a hill. They walk 15 feet up. Then Jack drops the bucket so they have to chase it 12 feet down. After getting the bucket, they sprint up the hill 5 feet because of a swarm of bees. Jill then decides she is too tired to make the rest of the trip. How far did they make it?

• 32 feet
• 8 feet
• 22 feet
• -2 feet

A butterfly is 6 feet above sea level. It flies 45 up until a hungry bird chases the butterfly 49 feet down. Where is the butterfly compared to where it started?

• 2 feet above sea level
• 2 feet below sea level
• 100 feet above sea level
• 10 feet below sea level

Define "Positive Number"

• A number that is greater than 0

• A whole number

• When you add

• A positive or negative whole number

Define "Negative Number"

• A number greater than zero

• A number and its opposite combine to equal 0

• A number less than zero

• Zero

What does the word "sum" mean?

• Add

• Subtract

• Multiply

• Divide