Unit Review: Rational number operations

B.1Add or subtract.

1. 1
   $12.8+(-15.6)=$ 
2. 2
   $-8.88+(-5.97)=$ 

B.2Multiply or divide.

1. 3
   $-5.16\times (-6)=$ 
2. 4
   $-67.9÷7=$ 

B.3Add or subtract. Write each answer in simplest form.

1. 5
   $\frac{5}{6}+\left(-\frac{1}{12}\right)=$ 
2. 6
   $\frac{3}{4}-\left(-\frac{3}{5}\right)=$ 

B.4Multiply or divide. Write each answer in simplest form.

1. 7
   $-\frac{1}{2}÷\frac{1}{4}=$ 
2. 8
   $-\frac{3}{10}÷\left(-\frac{11}{12}\right)=$ 

B.5Write each number as a decimal. Draw a bar over any digits that repeat.

1. 9
   $\frac{7}{12}=$ 
2. 10
   $\frac{1}{6}=$ 

B.6Write the numbers in the order shown.

1. 11
   Greatest to least: $-2.3$; $2.625$; $-2\frac{4}{5}$; $2\frac{7}{8}$
2. 12
   Greatest to least: $2\frac{1}{2}$; $-1.3$; $-\frac{1}{2}$; $1.75$

B.7Find the distance between each pair of numbers on a number line.

1. 13
   $-11.6$ and $-9.3$ 
2. 14
   $4.54$ and $-5.86$ 

B.8Write an expression and solve. Write fractions in simplest form.

1. 15
   The temperature fell $1.25$°F each hour for $4$ hours. What was the total change in temperature?
2. 16
   A stock's value fell a total of $7$ points over $5$ days, the same amount each day. What was the change in value each day?

B.9Solve. Write fractions in simplest form.

1. 17
   $\frac{1}{2}+\left(-\frac{3}{4}\right)=$ 
2. 18
   $\frac{3}{8}-\left(-\frac{1}{4}\right)=$ 

B.1Add & Subtract Positive & Negative Decimals

1. 1$-2.8$
2. 2$-14.85$

B.2Multiply & Divide Positive & Negative Decimals

1. 3$30.96$
2. 4$-9.7$

B.3Add & Subtract Positive & Negative Fractions

1. 5$\frac{3}{4}$
2. 6$1\frac{7}{20}$

B.4Multiply & Divide Positive & Negative Fractions

1. 7$-2$
2. 8$\frac{18}{55}$

B.5Fractions to Repeating & Terminating Decimals

1. 9$0.58\overline{3}$
2. 10$0.1\overline{6}$

B.6Order Rational Numbers

1. 11$2\frac{7}{8}$ > $2.625$ > $-2.3$ > $-2\frac{4}{5}$
2. 12$2\frac{1}{2}$ > $1.75$ > $-\frac{1}{2}$ > $-1.3$

B.7Distance Between Rational Numbers

1. 13$2.3$
2. 14$10.4$

B.8Rational Number Word Problems

1. 15$-5$°F
2. 16$-1.4$ points

B.9Rational Number Operations

1. 17$-\frac{1}{4}$
2. 18$\frac{5}{8}$