Negative Positive Addition Subtraction Multiplication Division

In multiplication the sign is determined by

• the large number

• same signs

• different signs

• 1st number

• how many negative signs

In multiplication the answer is positive if there is

• one negative sign

• two negative signs

• three negative signs

• four negative signs

• zero negative signs

In multiplication the answer is negative if

• one negative sign

• two negative signs

• three negative signs

• four negative signs

• zero negative signs

The integers rules are the same for which 2 operations

• addition

• subtraction

• multiplication

• division

In multiplication and division the sign is always determine by

• the largest number

• the most negative or positive numbers

• If an odd or even amount of positive numbers

• If an odd or even number of negative numbers

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 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

Steps to change subtraction to addition include

• keep 1st number same

• keep 2nd number same

• change 1st to opposite sign

• change 2nd to opposite

• change subtraction sign to an addition sign

-8+10=?

• -2

• 2

• -18

• 18