Transcript Quarter 1 Week 7 9/12-9/16/11

Quarter 1 Week 8
9/19
Quiz Practice
Warm-Up: 1) Find LCM and GCF of 40 and
48
2) What is reduced fraction of 40 and 48?
Divisibility Rules Practice pg. 45
• List 3 things you do for each number:
• 1) Underline last digit: 2 even
•
5 ends in 5 or 0
•
10 ends in 0
• 2) Add up digits: if 3 or 9 goes into
•
sum, then it goes in
•
number
• 3) Circle last 2 digits:
•
If 4 goes into that number, it
•
will go into the whole #
Divisibility Practice
2,5,10 3,9 4 6,12
• List all numbers that 9,360 are divisible by:
• List all numbers that 21,105 are divisible
by:
LCM/GCF Word Problem Practice
• Ms. Grace was creating packs for her classes. She had
25 pencils, 80 pens and 55 markers. She wants each
bag to contain the same number of pencils, pens and
markers. What is the largest number of bags she can
create without having any left over?
• How many of pencils, pens and markers will be in each
bag?
LCM or GCF pg. 49
• Ms. Grace is making bags for Halloween.
She has 40 snickers, 48 skittles and 84
blow pops. How many bags can she make
if she has no left overs? How many of
each candy is in each bag?
LCM/GCF Word Practice
• Ms. Grace is grilling hot dogs. Hot dogs come in
packages of 9, and buns come in packages of 12. What
is the fewest number of packages of hot dogs and buns
so there are none left over?
• What if they come in packages of 8 and 12? How many
packages must she buy?
LCM or GCF?
• Two trains leave the station at 8:00am.
One will return every 20 minutes, and one
will return every 15 minutes. When is the
next time they will both be at the station at
the same time?
Turn decimal to fraction or mixed
number in lowest terms. Pg. 51
• 3.12
• 0.78