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Lesson 1 GCF LCM.notebook September 09, 2013
Warm Up: Complete this in your spiral notebook
When this is complete, finish coloring your phones!
Homework
Lesson 1 GCF LCM.notebook September 09, 2013
Cell Phones
Speed Dial1 __________2 __________3 __________4 __________5 __________6 __________7 __________8 __________9 __________0 __________
GoDawgs!Mrs.
Reynolds
Front Back
Lesson 1 GCF LCM.notebook September 09, 2013
Lesson 1 GCF LCM.notebook September 09, 2013
Lesson 1 GCF LCM.notebook September 09, 2013
10 15 20
List the factor pairs by starting with 1x the number, 2x?, 3x? (GO IN ORDER!)
Lesson 1 GCF LCM.notebook September 09, 2013
Use the 'list' method
Use the 'factortree' method
Use either method
Lesson 1 GCF LCM.notebook September 09, 2013
M4 5
Hint: If you list the largest #s multiples first, you might find the LCM faster :)
Lesson 1 GCF LCM.notebook September 09, 2013
Hint: If you list the largest #s multiples first, you might find the LCM faster :)
Lesson 1 GCF LCM.notebook September 09, 2013
Hint: If you list the largest #s multiples first, you might find the LCM faster :)
Hint: If you multiply the 2 numbers, it will tell you a multiple. Sometimes that # will be the LCM
Hint: If you list the largest #s multiples first, you might find the LCM faster :)
List the factor pairs by starting with 1x the number, 2x?, 3x? (GO IN ORDER!)
Lesson 1 GCF LCM.notebook September 09, 2013
Warm Up (Use your notes from yesterday, if needed)1. Find the GCF of 21 and 35 using the list method.
2. Find the GCF of 24 and 40 using prime factorization (tree method).
3. Find the LCM of 9 and 15 (use the M organizer to help you)
Lesson 1 GCF LCM.notebook September 09, 2013
Check HW
1. 7 teams of 2 leaders and 11 scouts
2. 65 campers did not ride the bus.
3. June 4
4. 2 cm
There can only be 1 type of flower in each row.
GCF or LCM?
Lesson 1 GCF LCM.notebook September 09, 2013
Speed Dial 9
Lesson 1 GCF LCM.notebook September 09, 2013