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.

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? 

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?

A submarine is 500 feet below sea level. A hot air balloon is 8,550 feet above sea level. The submarine fires a missile at the hot air balloon. How far will the missile have to travel from the submarine to the hot air balloon?

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

At 6am in Buffalo, the temperature was -13 degrees. By noon, the temperature was 27 degrees. How much did the temperature change?

In City A the temperature between 8 am and 9 am was - 12 degrees. It increased 8 degrees between 9 am and 10 am. What was the temperature at 10 am?

-4 + -13 = ?

-14 + 19 =

The high temperature Monday was 4 degrees. The low temperature was -7 degrees. What is the DIFFERENCE between the high and low temperatures?

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