Adding & Subtracting Rational Numbers

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

•  $\frac{2}{5}$ 

•  $-\frac{2}{5}$  
  

•  $\frac{3}{5}$  

• -1

A recipe calls for  $\frac{1}{2}$  cup of sugar and  $\frac{1}{3}$  cup of cinnamon. What is the measure of the two ingredients combined?

•  $\frac{5}{6}$  cup

•  $\frac{2}{5}$  cup

•  $\frac{1}{6}$  cup

•  $\frac{1}{5}$  cup

When adding decimals with the same sign you.....

• subtract and take the sign of the larger number
• add the opposite
• add and keep the sign
• subtract and keep the sign

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

•  $\frac{1}{12}$  
  

•  $-\frac{1}{12}$  
  

•  $-\frac{17}{12}$  
  

•  $-1\frac{5}{12}$  

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

•  $1\frac{1}{2}$  
  

•  $2\frac{1}{2}$  
  

•  $-1\frac{1}{2}$  
  

•  $-2\frac{1}{2}$  
  

Which expression is equivalent to:

-7 - 8

• -8 + 7

• -7 + 8

• -8 - (-7)

• -7 + (-8)

• -7 - (-8)

Find an equivalent expression for:

-4 - (-2)

• -4 + 2

• -4 - 2

• 4 + 2

• 4 - 2

• -4 + (-2)

Which equation describes the picture?

• (-4) + (-6) = (-10)

• (-4) + 0 = (-10)

• 0 - (4) = (-10)

• 0 - (-4) = (-10)

• -4 - 6 = 10

Select all of the following that show the correct equation for the picture given.

• 0 - 9 - 2 = -11

• (-9) + (-2) = (-11)

• 0 - (-9) - (-2) = (-11)

• (-9) + 2 = (-11)

• 0 + 9 + 2 = 11

What is ¹/₈ + ⁵/₈?

• 1
• ⁶/₁₆ or ³/₈
• ⁶/₈ or ³/₄
• ²/₄ or ¹/₂