Multiplying Integers

Multiplying Integers

(& review from last week)

Open Ended

What do you remember about multiplying integers from yesterday?

Multiple Select

When ADDING/SUBTRACTING, the rule for same signs is to:

• Add and keep

• Subtracting and take sign of the higher value

• You'll get a positive answer

• You'll get a negative answer

Multiple Select

When ADDING/SUBTRACTING, the rule for different signs is:

• Add and keep

• Subtract & take the sign of the higher value

• You'll get a positive answer

• You'll get a negative answer

ADDING/SUBTRACTING:

Same Signs - Add & Keep

Different Signs - Subtract & take sign of higher value

MULTIPLYING/DIVIDING:

Same signs - POSITIVE ANSWER

Different signs - NEGATIVE ANSWER

How do we multiply RATIONALS?

Rationals are integers AND decimals/fractions

Multiplying Fractions

Multiply across then simplify if you can

Multiplying decimals

Multply like normal, then add in your decimals!