NOTE: Answers to all questions are given at the end of this exercise.

__Question No. 1:__

**Calculate the following:**

**(a) -5+13**

**(b) -11+19**

**(c) 14+(-7)**

**(d) 23+(-12)**

**(e) -37+22**

**(f) -45+19**

**(g) 25+(-66)**

**(h) 74+(-89)**

**(i) 101+(-200)**

** **

__Question No. 2:__

**Evaluate the following:**

**(a) -7+(-11)+9**

**(b) -10+17+(-21)**

**(c) 34+(-18)+9**

**(d) 81+(-6)+(-62)**

**(e) 51+14+(-100)**

**(f) -27+71+12**

**(g) [-7+(-4)]+[-45+92]**

**(h) [31+(-48)]+[-16+(-120)]**

** **

__Question No. 3:__

**The temperature of a piece of meat was -8°C when it was taken out of a freezer. After several minutes of warming, its temperature rose by 17°C. what is the new temperature of the piece of meat?**

** **

__Question No. 4:__

**A company’s profits and losses for the first quarter of a certain year are as shown below.**

**January : $6000 (profit)**

**February : $2000 (loss)**

**March : $5500 (loss)**

**(a) translate the company’s performance for the first quarter into a mathematical statement.**

**(b) how much profit or loss did the company make in the first quarter?**

**Answers**

**(from left to right)**

April 12, 2017

Knocked my socks off with knodlewge!