Who's is Correct?

Ms. Konnight gave the following question to the class:   -12 + 13 = x

Ana said the answer is 1

Juancito disagreed and said the answer was actually -1.

Who is correct? How do you know? 

Give a good explanation using your knowledge of NUMBER LINES!

Word Sort

Here is a list of words all mixed up into one group. Sort them into two groups: 
                  Positive Clue Words  AND Negative Clue Words


below, withdrawl, less, gain, 
greater, lose, deposit, rise, 
above, profit, more, fall

Transaction Action!

Amy opened a bank account with $50.00.
After her birthday she deposited the $25.00 her aunt gave her. Then, she deposited the $15.00 she got for babysitting her neighbor. At the end of the month she had to withdrawl $12.00 for a a new DVD that she wanted to buy. 


How much did Amy have left in her account after she bough the DVD?

Negative and Positive DIVISION

Answer the following problems:


A.   -36 / 9 =


B.   -15 / -5 =


C.   42 / 7 =


D.   72 / -8 =

TEMPERATURE

At 9:00am the temperature in Toronto, Canada was 56 degrees (Fahrenheit). At 9:00pm the temperature dropped 24 degrees. 
What was the temperature at 9:00pm?

Positive and Negative Rules

1. A negative number multiplied by a positive number ALWAYS results in a _________ product!      2. A negative number multiplied by a negative number ALWAYS results in a ________ product!   3. A positive number multiplied by a positive number ALWAYS results in a _________ product!