Integers Rules

In Addition if the signs the are the same we....

• Add

• Subtract

• Keep Common Sign

• Take sign of number with greater absolute value

In addition if both numbers are positive

• The sum is positive

• The sum is negative

• Add

• Subtract

In addition if both numbers are negative

• The sum is positive

• The sum is negative

• add

• subtract

In addition if the signs are different

• add

• subtract

• the sum is always positive

• the sum is always negative

• take sign of number with greater absolute value

In addition if the 1st number is positive and 2nd negative

• The answer is always positive

• The answer is always negative

• add

• subtract

• take sign of number with greater absolute value

In addition if the first number is negative

• Always add

• Always subtract

• Add if both negative

• Subtract if the other number is positive

• Take sign of number with greater absolute value

In a distance problem if both numbers are positive

• add

• subtract

• positive

• negative

• take sign of number with greater absolute value

In a distance problem if both numbers are negative

• add

• subtract

• positive

• negative

• take sign of number with greater absolute value

In a distance problem if 1st positive and 2nd negative

• add

• subtract

• positive

• negative

• keep sign of number with greater absolute value

In a distance problem if the 1st negative and 2nd positive.

• add

• subtract

• positive

• negative

• take sign of number with greater absolute value