Class Practice: Integer Operations

Click on each expression that has a value of -12.

• 

  $\left(-3\right)\left(-4\right)$

• $-9+\left(-3\right)$

• $-14+2$

• $24\div2$

• $8-20$

The sum of two negative numbers is a negative number.

• Always true

• Always false

• Sometimes true

 $10-\left(-3\right)$  

When multiplying, the product of two positive numbers will be _________.

• Negative

• Positive

• Neither

 $6-\left(-11\right)-3$  

•  $-8$  

•  $-2$   

•  $14$  

•  $20$  

 $14+\left(-5\right)$  

Describe and correct the error in the work below.

 $9+\left(-6\right)=-3$  

• The numeral is incorrect and the wrong sign is used; 15

• The numeral is incorrect but the sign is correct; -15

• The numeral is correct but the wrong sign is used; 3

• There is no error; -3

Your bank account balance is overdrawn with a balance of -$15. After mowing lawns for the neighbors, you deposit $65. What is your new balance?

• -$80

• -$50

• $50

• $80

Check all of the expressions that have a negative answer.

• $-8-13$

• $13+\left(-8\right)$

• $8+\left(-13\right)$

• $-13+8$

• $-8+13$

 $15-\left(-2\right)$