I know how to do multiplication, but what about division? Don’t worry Woody, it is easy to relate multiplication and division.

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Presentation transcript:

I know how to do multiplication, 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 add to find the total = 10

I can also multiply 2 by 5 to find the total. 2 is the number of tires on each bike. 5 is the number of bikes. 2x 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 = 4 Total 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? 18 Total number of cupcakes ÷3= Total number of boxes 6 Total number of cupcakes for each box.

Just like subtraction is the opposite of addition, division is the opposite of multiplication. You can use what you know about multiplication to help you with division.

Multiplication Facts Related Division Facts 4x 5 =20 ÷5=4 5x4 = ÷ 4=5 I’ll do the multiplication facts. Ok, I’ll do the related 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 Answer because3x8=24 ÷8=3 =3

Yeah! We did it !