Understanding
Note to the teacher
• Using this slideshow with manipulatives
(counters or tiles) will help reinforce the
concepts of multiplication and division.
• Each student should have about 65 counters or
tiles to model the problems in this slideshow.
• Guide students through the problems,
circulating the room to see that each student is
displaying manipulatives that correspond to the
problems.
Use multiplication
when you have to
add the same number
over and over again.
array
Addition
Addition
Addition
+ Addition
Can you model these
multiplication problems
using the manipulatives on your desk?
Samantha is saving $6 each
week for a bike.
How much money will she
have in 9 weeks?
Samantha is saving $6 each
week for a bike.
How much money will she
have in 9 weeks?
There are three
tennis balls in
each can.
How many tennis
balls are there in
8 cans?
There are three tennis balls in
each can.
How many tennis balls are
there in 8 cans?
Amy needs five strawberries for
each smoothie.
She is making five smoothies.
How many strawberries will she
need?
Amy needs five strawberries
for each smoothie.
She is making five smoothies.
How many strawberries will
she need?
Each smoothie
needs two
bananas. How
many bananas
are needed to
make eight
smoothies?
Each smoothie needs two
bananas. How many
bananas are needed to make
eight smoothies?
Ramona needs seven beads
for each necklace she is
making.
How many beads will she
need to make eight
necklaces?
Ramona needs seven beads for
each necklace she is making.
How many beads will she need
to make eight necklaces?
Kim burns 5 pieces
of firewood each
night in her
fireplace. How
many pieces of
wood will she use
in a week?
Kim burns 5 pieces
of firewood each
night in her
fireplace. How
many pieces of
wood will she use
in a week?
Four girls slept in
each tent.
How many girls
were in six
tents?
Four girls slept in
each tent.
How many girls
were in six
tents?
Each flashlight holds three
batteries.
How many batteries are
needed for 9 flashlights?
Each flashlight holds three
batteries.
How many batteries are
needed for 9 flashlights?
There are ten fancy light fixtures
hanging in our family’s restaurant.
Each one uses six light bulbs. How
many bulbs are needed for all the
fixtures?
There are ten fancy light fixtures
hanging in our family’s restaurant.
Each one uses six light bulbs. How
many bulbs are needed for all the
fixtures?
If one sandwich is made with four
meatballs, how many do you need
to make seven meatball
sandwiches?
If one sandwich is made with four
meatballs, how many do you need
to make seven meatball
sandwiches?
How many eggs
are in 5 dozen?
How many eggs
are in 5 dozen?
• Every porch on
our street is
decorated with
three pots of
mums. How
many pots of
flowers are on all
seven porches?
Every porch on our street is decorated with
three pots of mums. How many pots of
flowers are on all seven porches?