Integer Operations

Subtracting a negative is the same thing as...

• Becoming more negative

• Adding a positive

• Becoming 0

• Impossibility

When ADDing two integers with the SAME SIGN...

• Add and keep the same sign.

• Add and change the sign.

• Subtract and keep the same sign.

• Subtract and change the sign.

When ADDing two integers with the SAME SIGN...

• Add and keep the same sign.

• Add and change the sign.

• Subtract and keep the same sign.

• Subtract and change the sign.

 $-5+7=?$  

• 12

• 2

• -2

• -12

 $12+(-3)$  

• 9

• -9

• 15

• -15

 $-6\ -\ 10\ =\ ?$  

• -4

• 4

• 16

• -16

 $7\ -\ 13\ =\ ?$  

• 6

• -6

• 20

• -20

 $12\ \cdot\ -4\ =?$  

• 48

• -48

• 24

• 8

 $-72\div12\ =?$  

• 8

• -8

• -6

• 6

 $-3\ -\ \left(-7\right)=?$  

• 10

• -10

• 4

• -4