Multiply

1
Multiply Divide Rational Numbers

• U2L3
• PS 12-4

2
Agenda Do Now

1. 5 (-3)
2. -4 7
3. -1 (-6)
4. 9 (-2)

• Do Now Planner
• Quietly on your own
• Homework check grade/ questions
• U2L2 L3 Notes
• Practice
• Clean up/Prepare to go

5 min 20 min 15 min 8 min 2 min
3
Rules

• MULTIPLYING AND DIVIDING INTEGERS
• If the signs are the same ? your answer will be
  positive
• If the signs are different ? your answer will be
  negative
• If you are multiplying more than 2 numbers
• an even number of negative signs means your
  answer will be positive
• an odd number of negative signs means your answer
  will be negative

4
Examples

• 3 ? (-4) -12
• -5 5 -1
• 2 ? 8 16
• -9 -3 3

Different signs negative answer
Same signs positive answer
5
Assignment

• P.152 1-39 odd
• You may work in cooperative pairs