Adding & Subtracting Rational Numbers

-7.8 + (-0.8)

• 8.6
• -8.6
• 7
• -7

 $\frac{1}{5}+\left(-\frac{3}{5}\right)$  

•  $\frac{2}{5}$ 

•  $-\frac{2}{5}$  
  

•  $\frac{3}{5}$  

• -1

 $-2\frac{1}{4}-8\frac{2}{5}$  

•  $-6\frac{3}{20}$ 

•  $-10\frac{13}{20}$  

•  $-10\frac{1}{3}$  

•  $-6\frac{1}{20}$  
  

 $-1\frac{7}{8}+\left(-3\frac{1}{2}\right)$  

•  $5\frac{3}{8}$  
  

•  $-5\frac{3}{8}$  
  

•  $1\frac{5}{8}$  
  

•  $-1\frac{5}{8}$  
  

 $-\frac{3}{4}-\left(-\frac{2}{3}\right)$  

•  $\frac{1}{12}$  
  

•  $-\frac{1}{12}$  
  

•  $-\frac{17}{12}$  
  

•  $-1\frac{5}{12}$  

 $\frac{5}{8}-\left(-\frac{7}{8}\right)$  

•  $1\frac{1}{2}$  
  

•  $2\frac{1}{2}$  
  

•  $-1\frac{1}{2}$  
  

•  $-2\frac{1}{2}$  
  

6.59 + (−7.8) − (−2.41)

• 16.8
• 11.98
• -3.62
• 1.2

The temperature on Sunday was -15^o C. The temperature on Monday was 2.5 degrees less than the temperature on Sunday. What was the temperature on Monday?

• -17.5^o C

• 17.5^o C

• -12.5^o C

• 12.5^o C

Braeden currently has a balance of -$12.32 in his checking account. He deposits $30. What is the balance of Braeden's checking account?

• $42.32

• $17.68

• $12.02

• $18.32

Which expression is equivalent to:

-7 - 8

• -8 + 7

• -7 + 8

• -8 - (-7)

• -7 + (-8)

• -7 - (-8)