Add Subtract Multiply Divide Integers and Rules

2 - 7

• 5

• 9

• -9

• -5

6 + (-4)

• 2

• -2

• 10

• -10

-9 + (-2)

• 11

• 7

• -7

• -11

-4 + 10

• 14

• -14

• 6

• -6

Which is NOT true when multiplying or dividing integers?

• Two negatives = positive

• Two positives = negative

• A negative and a positive = negative

• Two positives - positive

23 - 47 + 18 - (-12) =

• 6

• -18

• 56

Rules for Multiplying or Dividing Integers

SELECT 2 Choices!

• Same Signs = Negative

• Different Signs = Negative

• Same Signs = Positive

• Different Signs = Positive

Which expression is represented by the model?

• 5 x -2

• 5 + (-2)

• -5 - 2

• 5 - (-2)

What are the rules when multiplying or dividing integers?

• Same, Change, Change

• When Multiplying or dividing two integers, if the signs are the same, the answer is negative, but if the signs are different, the sign is positive.

• When multiplying or dividing two integers, if the signs are the same, the answer is positive, but if the signs are different, the sign is negative.

• Same, Same, Change

To add integers with the SAME sign,

• subtract and make it negative.

• add the integers and keep the sign.

• add the numbers and it’s always positive.

• subtract the numbers and it’s always zero.