I know how to domultiplication, but

what about division?

Don’t worry Woody,it is easy to relate multiplication and

division.

Multiplication is a shortcut for addition .

When you add, you combine amounts.

When you have equal amounts to add, you can multiply to find the total.

Sample There are 5 bicycles that need new tires.How many tires is that?

You could add2+2+2+2+2 to

find the total.

2 2 2 2 2+ + ++

2 + 2 + 2 + 2 + 2 = 10

I can also multiply

2 by 5

to find the total .

2 is the number oftires on each bike.

5 is the numberof bikes.

2 x 5 = 10 Total number of tires

is the operation of making equal groups and finding the number in each group

or the number of groups.

Wow!! ! ! ! ! ! That sounds cool!

Division

There are 12 stickers and 3 students. How many stickers can each student get so that they

each have the same amount?

12 ÷ 3 = 4Total number of

stickers Total number of students

Number of stickers for each student.

Sample There are 18 cupcakes. How many cupcakes can you put into 3 boxes so each

box has the same amount of cupcakes?

18Total number of cupcakes

÷ 3 =

Total number of boxes

6 Total number ofcupcakes for each box.

Just like subtraction is the opposite of addition,

division is the opposite of multiplication.

You can use what you know about multiplicationto help you with division.

Multiplication Facts Related Division Facts

4 x 5 = 20 20 ÷ 5 = 4

5 x 4 = 20 20 ÷ 4 = 5

I ’ l l do the multiplication

facts.

Ok, I ’ l l do therelated

division facts

Some people find multiplication easier than division.If you do, when you see division, think about multiplication.

24 ÷ 8 = Think:

X 8 = 24

The number you need to write here is called the missing factor .

= 3

So, you know

AnswerAnswer

because 3 x 8 = 24

24 ÷ 8 = 3

= 3

Yeah! We did it !