Ready - Integer Operations

Which of the following expressions show the difference between two numbers equal to -3? Select all that apply

• 
  

  $-4\ -\ 1$

• $8\ -\ 11$

• $2\ -\left(-1\right)$

• $-1\ -2$

• $-5\ -\ \left(-2\right)$

Determine which of the following equations shows the correct quotient.

•  $-4\ \div\ \left(-1\right)\ =\ -4$ 

•  $-6\ \div\left(-2\right)\ =\ -3$ 

•  $-7\div\ \left(-7\right)\ =\ 1$ 

•  $10\ \div\ \left(-5\right)\ =\ 2$ 

In which situation do the quantities combine to make 0?

• A football team lost 6 yards on one play and gained 3 yards on the next.

• The temperature at 5am was -5 degrees F. Over the next 4 hours, the temperature increased by a total of 5 degrees.  

• A car wash earns $7 per car, and spends $7 per truck washed. On Friday, they washed 10 cards and 5 trucks.

• Manuel deposited $75 into his savings account on Monday. The next week he deposited $75 into his checking account.

 $-4\ +\ \left(-3\right)$  Will the sum of be positive or negative?

• Positive

• Negative

Which situation could  $-2\times15\ =\ -\ 30$   represent?

• Jack owes 2 people $15, so he owes a total of $30.

• The bottom of a pond is 2 meters below sea level. A nearby hill rises 15 meters above sea level. The vertical distance from the bottom of the pond, to the top of the pond is 30 meters. 

• Emma lost 2 points on her first turn in a game. She earned 15 points on her second turn. She has a total of -30 points

• A scientist controls the temperature of a substance so that it decreases by 2 $\degree$ F per minute over 15 minutes. The temperature decreases by a total of 30 $\degree$ F.  

Which expression is equivalent to

 $19\ -\ 27$  

•  $27\ -\ 19$ 

•  $-\left(19\ +\ 27\right)$  

•  $19\ +\left(-27\right)$  

•  $-19\ +\ 27$  

 $-5\ +\ \left(-3\right)$  

• -2

• 2

• 8

• -8

 $-21\ +\ 7$  

• 14

• -14

• 28

• -28

 $\frac{4}{5}\ +\ \left(-\frac{3}{5}\right)$  

•  $-\frac{1}{5}$  

•  $\frac{1}{10}$  

•  $-\frac{1}{10}$  

•  $\frac{1}{5}$  

•  $\frac{7}{10}$  

 $17\ -\left(-8\right)$  

• 25

• 9

• -9

• -25