Rational Number Computation - 8th grade

When José and Sean were each 5 years old, José was  $1\frac{1}{2}$  inches taller than Sean. José grew at an average rate of   $2\frac{3}{4}$  inches per year from the time that he was 5 years old until the time he was 13 years old. José was 63 inches tall when he was 13 years old. How tall was Sean when he was 5 years old?

•  $39\frac{1}{2}$  

•  $42\frac{1}{2}$  

•  $44\frac{3}{4}$  

•  $47\frac{3}{4}$  

 $0.35$        Write the decimal as a fraction in simplest form.

•  $\frac{2}{25}$  

•  $\frac{7}{20}$  

•  $\frac{14}{40}$  

•  $1\frac{1}{4}$  

•  $\frac{-5}{4}$  

 $\frac{3}{4}+\left(-\frac{1}{2}\right)$  Add. Write fractions in simplest form.

•  $1\frac{1}{4}$  

•  $-\frac{1}{4}$  

•  $\frac{1}{4}$  

•  $\frac{3}{4}$  

•  $\frac{5}{4}$  

 $-\frac{1}{2}-\left(-\frac{1}{2}\right)$  

•  $-4$  

•  $-1$  

•  $0$  

•  $\frac{1}{2}$  

•  $-\frac{1}{4}$  

 $-1\frac{5}{6}\div4$  

•  $-\frac{25}{12}$  

•  $-\frac{11}{24}$  

•  $-\frac{22}{3}$  

•  $\frac{-12}{11}$  

 $-\frac{1}{4}\left(-\frac{7}{4}\right)$  

•  $\frac{3}{4}$  

•  $\frac{7}{16}$  

•  $\frac{9}{32}$  

•  $-\frac{9}{32}$  

•  $-\frac{8}{4}$  

A sports store has 116 soccer balls. Over 6 months, it sells 8 soccer balls per month. How many soccer balls are in inventory at the end of the 6 months?

In one year, a company has a profit of −$2 million. In the next year, the company has a profit of $7 million. How much more profit did the company make the second year?

• $2 million

• $5 million

• $7 million

• $9 million

2/3 × -6/5

• 3/2

• 6/5

• -4/5

• none

 $\left(-\frac{9}{16}\times\frac{8}{15}\right)\ =\ ?$  

•  $-\frac{3}{10}$  

•  $-\frac{4}{15}$  

•  $-\frac{9}{25}$  

•  $-\frac{2}{5}$  

Tags

CCSS.7.NS.A.2A