Operations with Rational Numbers Review

What is the value of the expression  $-18-\left(-28\right)$  ?

Select the expressions that are equivalent to  $-12$  .

What is  $\frac{4}{25}$  written as a decimal?

Halifax is at an elevation of  $-150\ \frac{1}{2}$  meters.  Dartmouth is 3 times farther below sea level than Halifax.
What is the elevation of Dartmouth?

Select the fraction that terminates when expressed as a decimal.

At sunrise on Monday, the temperature in Montreal, Quebec was  $-5\degree\ C$  .
By noon, the temperature in Montreal, Quebec increased by  $20\degree\ C$  .
What was the temperature in Montreal, Quebec at noon?

 $-8-\left(-5\right)$  

(a)  

 $-\frac{3}{4\ }+\ 3\ \frac{1}{2}$  

Calvin was in debt 26 dollars. He decided to wash his neighbors windows for 20 dollars and clean their car for 15 dollars. How much money does Calvin have now?

 $-8\ \times\ 3$  

(a)