7학년 1분기 시험

Add or subtract.

1. 1
   $-20-(-17)=$ 
2. 2
   $-27+(-53)=$ 

Multiply or divide.

1. 3
   $56÷(-8)=$ 
2. 4
   $-5\times 11=$ 

Evaluate each expression.

1. 5
   $5\times (-9-(-3))=$ 
2. 6
   $(-7{)}^2-(-6)\times (-9)=$ 

Write and solve an integer expression for each problem.

1. 7
   The temperature dropped $3$°F every hour for $8$ hours. What was the total change in temperature?

Add or subtract.

1. 8
   $-2.7-2.8=$ 
2. 9
   $-0.66+(-1.1)=$ 

Add or subtract. Write each answer in simplest form.

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

Multiply or divide. Write each answer in simplest form.

1. 13
   $-\frac{7}{10}\times \frac{1}{2}=$ 
2. 14
   $2\frac{1}{2}\times \left(-1\frac{1}{4}\right)=$ 

Write the numbers in the order shown.

1. 16
   Greatest to least: $\frac{3}{8}$; $-0.7$; $-2\frac{3}{5}$; $-1.5$

Write each in the form asked for, or fill in the missing exponent.

1. 20
   $10^{-2}$ as a decimal: 
2. 21
   $4\times 10^{-3}=$ 

Write >, <, or = in each circle.

1. 24
   $1.5\times 10^8$$6\times 10^7$
2. 25
   $9\times 10^{-5}$$7.3\times 10^{-5}$

Evaluate.

1. 26
   $\sqrt{4}=$ 
2. 27
   $-\sqrt{81}=$ 

Fill in the two whole numbers, or round to the nearest whole number.

1. 28
   $\boxed{}<\sqrt{177}<\boxed{}$
2. 29
   $\sqrt{120}\approx$ 

Use the histogram to answer each question.

1. 30
   How many students scored 60 or higher?