Powerful Start- the Key to Project Success, Barbara Laskowska
Multiplication, part 1
1.
2. Today, we will learn…
0 What multiplication is
0 Why multiplication is important
0 When to use multiplication versus when to use
addition
0 How to multiply using the times table
3. 0 Multiplication is
the number
produced by
combining groups
of the same size.
0 The same
number can be
produced by
addition.
4. 0 Multiplication is
easier than addition if
you are multiplying
many groups of the
same size.
0 EXAMPLE= Mary has
5 rolls of lifesavers in
her Trick or Treat
bag. Each roll has 10
candies in it. She can
easily find out how
many she has by
multiplying.
5. To be able to multiply
large numbers, we need
to know our
Multiplication Table,
also known as the Times
Table.
6. We use the
numbers on
the sides to
find the
groups & the
numbers in
our groups.
7. If Mary is still trying
She has 5 rolls of LifeSavers, so she to figure out how
finds the number 5 on one side many Lifesavers she
has, she can use her
Multiplication Table.
There are 10
LifeSavers in each
roll, so she finds
the number 10 on
the other side.
8. If Mary is still trying
She has 5 rolls of LifeSavers, so she to figure out how
finds the number 5 on one side many Lifesavers she
has, she can use her
Multiplication Table.
There are 10
LifeSavers in each
roll, so she finds
the number 10 on
the other side.
9. If Tom has 6 books, and each book has 12
pages, how many pages are there total?
10. If Tom has 6 books, and each book has 12
pages, how many pages are there total?
